Home / 86,238,082.80-129,357,124.20-69,231,970.80

Finding the Fourth Proportional to 86,238,082.80, 129,357,124.20 and 69,231,970.80

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Solution

The fourth proportional to 86,238,082.80, 129,357,124.20 and 69,231,970.80 is: 103,847,956.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,238,082.80 : 129,357,124.20 = 69,231,970.80 : x
  2. Step 2: Convert to fraction form
    86,238,082.80/129,357,124.20 = 69,231,970.80/x
  3. Step 3: Cross multiply
    86,238,082.80x = 129,357,124.20 × 69,231,970.80
  4. Step 4: Simplify right side
    86,238,082.80x = 8,955,648,645,386,373
  5. Step 5: Solve for x
    x = 8,955,648,645,386,373/86,238,082.80
  6. Step 6: Final answer
    x = 103,847,956.20

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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.