Home / 131,251,834.73-181,129,432.55-72,515,850.72

Finding the Fourth Proportional to 131,251,834.73, 181,129,432.55 and 72,515,850.72

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Solution

The fourth proportional to 131,251,834.73, 181,129,432.55 and 72,515,850.72 is: 100,072,924.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,251,834.73 : 181,129,432.55 = 72,515,850.72 : x
  2. Step 2: Convert to fraction form
    131,251,834.73/181,129,432.55 = 72,515,850.72/x
  3. Step 3: Cross multiply
    131,251,834.73x = 181,129,432.55 × 72,515,850.72
  4. Step 4: Simplify right side
    131,251,834.73x = 13,134,754,891,431,528
  5. Step 5: Solve for x
    x = 13,134,754,891,431,528/131,251,834.73
  6. Step 6: Final answer
    x = 100,072,924.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.