Home / 315,226,713.20-472,840,069.80-272,144,562.80

Finding the Fourth Proportional to 315,226,713.20, 472,840,069.80 and 272,144,562.80

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Solution

The fourth proportional to 315,226,713.20, 472,840,069.80 and 272,144,562.80 is: 408,216,844.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,226,713.20 : 472,840,069.80 = 272,144,562.80 : x
  2. Step 2: Convert to fraction form
    315,226,713.20/472,840,069.80 = 272,144,562.80/x
  3. Step 3: Cross multiply
    315,226,713.20x = 472,840,069.80 × 272,144,562.80
  4. Step 4: Simplify right side
    315,226,713.20x = 128,680,854,070,042,496
  5. Step 5: Solve for x
    x = 128,680,854,070,042,496/315,226,713.20
  6. Step 6: Final answer
    x = 408,216,844.20

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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.