Home / 431,569,405.10-647,354,107.65-268,310,729.90

Finding the Fourth Proportional to 431,569,405.10, 647,354,107.65 and 268,310,729.90

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Solution

The fourth proportional to 431,569,405.10, 647,354,107.65 and 268,310,729.90 is: 402,466,094.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,569,405.10 : 647,354,107.65 = 268,310,729.90 : x
  2. Step 2: Convert to fraction form
    431,569,405.10/647,354,107.65 = 268,310,729.90/x
  3. Step 3: Cross multiply
    431,569,405.10x = 647,354,107.65 × 268,310,729.90
  4. Step 4: Simplify right side
    431,569,405.10x = 173,692,053,127,334,656
  5. Step 5: Solve for x
    x = 173,692,053,127,334,656/431,569,405.10
  6. Step 6: Final answer
    x = 402,466,094.85

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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.