Home / 1,152,467,214.72-1,588,824,212.58-728,869,750.80

Finding the Fourth Proportional to 1,152,467,214.72, 1,588,824,212.58 and 728,869,750.80

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Solution

The fourth proportional to 1,152,467,214.72, 1,588,824,212.58 and 728,869,750.80 is: 1,004,840,652.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,152,467,214.72 : 1,588,824,212.58 = 728,869,750.80 : x
  2. Step 2: Convert to fraction form
    1,152,467,214.72/1,588,824,212.58 = 728,869,750.80/x
  3. Step 3: Cross multiply
    1,152,467,214.72x = 1,588,824,212.58 × 728,869,750.80
  4. Step 4: Simplify right side
    1,152,467,214.72x = 1,158,045,907,888,190,720
  5. Step 5: Solve for x
    x = 1,158,045,907,888,190,720/1,152,467,214.72
  6. Step 6: Final answer
    x = 1,004,840,652.38

Related Problems

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Half scale
Find fourth proportional to 2,304,934,429.44, 3,177,648,425.16 and 1,457,739,501.60
Double scale
Find fourth proportional to 1,152,467,215.72, 1,588,824,213.96 and 728,869,751.80
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.