Home / 87,129,218.40-130,693,827.60-83,161,125.60

Finding the Fourth Proportional to 87,129,218.40, 130,693,827.60 and 83,161,125.60

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Solution

The fourth proportional to 87,129,218.40, 130,693,827.60 and 83,161,125.60 is: 124,741,688.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,129,218.40 : 130,693,827.60 = 83,161,125.60 : x
  2. Step 2: Convert to fraction form
    87,129,218.40/130,693,827.60 = 83,161,125.60/x
  3. Step 3: Cross multiply
    87,129,218.40x = 130,693,827.60 × 83,161,125.60
  4. Step 4: Simplify right side
    87,129,218.40x = 10,868,645,812,188,346
  5. Step 5: Solve for x
    x = 10,868,645,812,188,346/87,129,218.40
  6. Step 6: Final answer
    x = 124,741,688.40

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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.