Home / 87,155,912.10-120,271,272.79-49,959,520.59

Finding the Fourth Proportional to 87,155,912.10, 120,271,272.79 and 49,959,520.59

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Solution

The fourth proportional to 87,155,912.10, 120,271,272.79 and 49,959,520.59 is: 68,941,910.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,155,912.10 : 120,271,272.79 = 49,959,520.59 : x
  2. Step 2: Convert to fraction form
    87,155,912.10/120,271,272.79 = 49,959,520.59/x
  3. Step 3: Cross multiply
    87,155,912.10x = 120,271,272.79 × 49,959,520.59
  4. Step 4: Simplify right side
    87,155,912.10x = 6,008,695,129,337,513
  5. Step 5: Solve for x
    x = 6,008,695,129,337,513/87,155,912.10
  6. Step 6: Final answer
    x = 68,941,910.93

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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.