Home / 86,527,008.52-129,787,120.50-21,830,008.12

Finding the Fourth Proportional to 86,527,008.52, 129,787,120.50 and 21,830,008.12

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Solution

The fourth proportional to 86,527,008.52, 129,787,120.50 and 21,830,008.12 is: 32,744,156.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,527,008.52 : 129,787,120.50 = 21,830,008.12 : x
  2. Step 2: Convert to fraction form
    86,527,008.52/129,787,120.50 = 21,830,008.12/x
  3. Step 3: Cross multiply
    86,527,008.52x = 129,787,120.50 × 21,830,008.12
  4. Step 4: Simplify right side
    86,527,008.52x = 2,833,253,894,386,418.50
  5. Step 5: Solve for x
    x = 2,833,253,894,386,418.50/86,527,008.52
  6. Step 6: Final answer
    x = 32,744,156.34

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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.