Home / 1,120,214,109.80-1,680,321,164.70-603,653,457.80

Finding the Fourth Proportional to 1,120,214,109.80, 1,680,321,164.70 and 603,653,457.80

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Solution

The fourth proportional to 1,120,214,109.80, 1,680,321,164.70 and 603,653,457.80 is: 905,480,186.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,214,109.80 : 1,680,321,164.70 = 603,653,457.80 : x
  2. Step 2: Convert to fraction form
    1,120,214,109.80/1,680,321,164.70 = 603,653,457.80/x
  3. Step 3: Cross multiply
    1,120,214,109.80x = 1,680,321,164.70 × 603,653,457.80
  4. Step 4: Simplify right side
    1,120,214,109.80x = 1,014,331,681,285,678,208
  5. Step 5: Solve for x
    x = 1,014,331,681,285,678,208/1,120,214,109.80
  6. Step 6: Final answer
    x = 905,480,186.70

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.