Home / 71,511,859.92-98,689,616.28-42,144,431.88

Finding the Fourth Proportional to 71,511,859.92, 98,689,616.28 and 42,144,431.88

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Solution

The fourth proportional to 71,511,859.92, 98,689,616.28 and 42,144,431.88 is: 58,161,231.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,511,859.92 : 98,689,616.28 = 42,144,431.88 : x
  2. Step 2: Convert to fraction form
    71,511,859.92/98,689,616.28 = 42,144,431.88/x
  3. Step 3: Cross multiply
    71,511,859.92x = 98,689,616.28 × 42,144,431.88
  4. Step 4: Simplify right side
    71,511,859.92x = 4,159,217,810,575,799.50
  5. Step 5: Solve for x
    x = 4,159,217,810,575,799.50/71,511,859.92
  6. Step 6: Final answer
    x = 58,161,231.09

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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.