Home / 431,569,470.30-647,354,205.45-395,856,635.10

Finding the Fourth Proportional to 431,569,470.30, 647,354,205.45 and 395,856,635.10

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Solution

The fourth proportional to 431,569,470.30, 647,354,205.45 and 395,856,635.10 is: 593,784,952.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,569,470.30 : 647,354,205.45 = 395,856,635.10 : x
  2. Step 2: Convert to fraction form
    431,569,470.30/647,354,205.45 = 395,856,635.10/x
  3. Step 3: Cross multiply
    431,569,470.30x = 647,354,205.45 × 395,856,635.10
  4. Step 4: Simplify right side
    431,569,470.30x = 256,259,457,487,271,104
  5. Step 5: Solve for x
    x = 256,259,457,487,271,104/431,569,470.30
  6. Step 6: Final answer
    x = 593,784,952.65

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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.