Home / 431,022,752.10-646,534,128.15-397,766,355.30

Finding the Fourth Proportional to 431,022,752.10, 646,534,128.15 and 397,766,355.30

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Solution

The fourth proportional to 431,022,752.10, 646,534,128.15 and 397,766,355.30 is: 596,649,532.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,022,752.10 : 646,534,128.15 = 397,766,355.30 : x
  2. Step 2: Convert to fraction form
    431,022,752.10/646,534,128.15 = 397,766,355.30/x
  3. Step 3: Cross multiply
    431,022,752.10x = 646,534,128.15 × 397,766,355.30
  4. Step 4: Simplify right side
    431,022,752.10x = 257,169,523,731,288,640
  5. Step 5: Solve for x
    x = 257,169,523,731,288,640/431,022,752.10
  6. Step 6: Final answer
    x = 596,649,532.95

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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.