Home / 87,549,011.24-120,815,528.20-47,854,760.90

Finding the Fourth Proportional to 87,549,011.24, 120,815,528.20 and 47,854,760.90

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Solution

The fourth proportional to 87,549,011.24, 120,815,528.20 and 47,854,760.90 is: 66,038,418.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,549,011.24 : 120,815,528.20 = 47,854,760.90 : x
  2. Step 2: Convert to fraction form
    87,549,011.24/120,815,528.20 = 47,854,760.90/x
  3. Step 3: Cross multiply
    87,549,011.24x = 120,815,528.20 × 47,854,760.90
  4. Step 4: Simplify right side
    87,549,011.24x = 5,781,598,214,294,493
  5. Step 5: Solve for x
    x = 5,781,598,214,294,493/87,549,011.24
  6. Step 6: Final answer
    x = 66,038,418.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.