Home / 87,120,430.20-130,680,645.30-82,868,902.20

Finding the Fourth Proportional to 87,120,430.20, 130,680,645.30 and 82,868,902.20

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Solution

The fourth proportional to 87,120,430.20, 130,680,645.30 and 82,868,902.20 is: 124,303,353.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,120,430.20 : 130,680,645.30 = 82,868,902.20 : x
  2. Step 2: Convert to fraction form
    87,120,430.20/130,680,645.30 = 82,868,902.20/x
  3. Step 3: Cross multiply
    87,120,430.20x = 130,680,645.30 × 82,868,902.20
  4. Step 4: Simplify right side
    87,120,430.20x = 10,829,361,614,798,590
  5. Step 5: Solve for x
    x = 10,829,361,614,798,590/87,120,430.20
  6. Step 6: Final answer
    x = 124,303,353.30

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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.