Home / 86,032,857.60-129,049,286.40-80,989,862.40

Finding the Fourth Proportional to 86,032,857.60, 129,049,286.40 and 80,989,862.40

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Solution

The fourth proportional to 86,032,857.60, 129,049,286.40 and 80,989,862.40 is: 121,484,793.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,032,857.60 : 129,049,286.40 = 80,989,862.40 : x
  2. Step 2: Convert to fraction form
    86,032,857.60/129,049,286.40 = 80,989,862.40/x
  3. Step 3: Cross multiply
    86,032,857.60x = 129,049,286.40 × 80,989,862.40
  4. Step 4: Simplify right side
    86,032,857.60x = 10,451,683,948,354,192
  5. Step 5: Solve for x
    x = 10,451,683,948,354,192/86,032,857.60
  6. Step 6: Final answer
    x = 121,484,793.60

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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.