Home / 315,226,712.20-472,840,068.30-272,144,561.80

Finding the Fourth Proportional to 315,226,712.20, 472,840,068.30 and 272,144,561.80

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Solution

The fourth proportional to 315,226,712.20, 472,840,068.30 and 272,144,561.80 is: 408,216,842.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,226,712.20 : 472,840,068.30 = 272,144,561.80 : x
  2. Step 2: Convert to fraction form
    315,226,712.20/472,840,068.30 = 272,144,561.80/x
  3. Step 3: Cross multiply
    315,226,712.20x = 472,840,068.30 × 272,144,561.80
  4. Step 4: Simplify right side
    315,226,712.20x = 128,680,853,188,985,584
  5. Step 5: Solve for x
    x = 128,680,853,188,985,584/315,226,712.20
  6. Step 6: Final answer
    x = 408,216,842.70

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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.