Home / 87,149,455.20-130,724,182.80-57,924,136.80

Finding the Fourth Proportional to 87,149,455.20, 130,724,182.80 and 57,924,136.80

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Solution

The fourth proportional to 87,149,455.20, 130,724,182.80 and 57,924,136.80 is: 86,886,205.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,149,455.20 : 130,724,182.80 = 57,924,136.80 : x
  2. Step 2: Convert to fraction form
    87,149,455.20/130,724,182.80 = 57,924,136.80/x
  3. Step 3: Cross multiply
    87,149,455.20x = 130,724,182.80 × 57,924,136.80
  4. Step 4: Simplify right side
    87,149,455.20x = 7,572,085,447,575,406
  5. Step 5: Solve for x
    x = 7,572,085,447,575,406/87,149,455.20
  6. Step 6: Final answer
    x = 86,886,205.20

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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.