Home / 71,888,432.11-99,253,875.18-42,529,170.89

Finding the Fourth Proportional to 71,888,432.11, 99,253,875.18 and 42,529,170.89

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Solution

The fourth proportional to 71,888,432.11, 99,253,875.18 and 42,529,170.89 is: 58,718,557.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,888,432.11 : 99,253,875.18 = 42,529,170.89 : x
  2. Step 2: Convert to fraction form
    71,888,432.11/99,253,875.18 = 42,529,170.89/x
  3. Step 3: Cross multiply
    71,888,432.11x = 99,253,875.18 × 42,529,170.89
  4. Step 4: Simplify right side
    71,888,432.11x = 4,221,185,019,432,568.50
  5. Step 5: Solve for x
    x = 4,221,185,019,432,568.50/71,888,432.11
  6. Step 6: Final answer
    x = 58,718,557.29

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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.