Home / 1,108,971,627.20-1,663,457,440.80-291,166,596.80

Finding the Fourth Proportional to 1,108,971,627.20, 1,663,457,440.80 and 291,166,596.80

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Solution

The fourth proportional to 1,108,971,627.20, 1,663,457,440.80 and 291,166,596.80 is: 436,749,895.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,108,971,627.20 : 1,663,457,440.80 = 291,166,596.80 : x
  2. Step 2: Convert to fraction form
    1,108,971,627.20/1,663,457,440.80 = 291,166,596.80/x
  3. Step 3: Cross multiply
    1,108,971,627.20x = 1,663,457,440.80 × 291,166,596.80
  4. Step 4: Simplify right side
    1,108,971,627.20x = 484,343,241,959,373,504
  5. Step 5: Solve for x
    x = 484,343,241,959,373,504/1,108,971,627.20
  6. Step 6: Final answer
    x = 436,749,895.20

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Half scale
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Double scale
Find fourth proportional to 1,108,971,628.20, 1,663,457,442.30 and 291,166,597.80
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.