Home / 86,159,683.20-129,239,524.80-82,758,460.80

Finding the Fourth Proportional to 86,159,683.20, 129,239,524.80 and 82,758,460.80

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Solution

The fourth proportional to 86,159,683.20, 129,239,524.80 and 82,758,460.80 is: 124,137,691.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,159,683.20 : 129,239,524.80 = 82,758,460.80 : x
  2. Step 2: Convert to fraction form
    86,159,683.20/129,239,524.80 = 82,758,460.80/x
  3. Step 3: Cross multiply
    86,159,683.20x = 129,239,524.80 × 82,758,460.80
  4. Step 4: Simplify right side
    86,159,683.20x = 10,695,664,146,971,428
  5. Step 5: Solve for x
    x = 10,695,664,146,971,428/86,159,683.20
  6. Step 6: Final answer
    x = 124,137,691.20

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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.