Home / 83,972,712.90-125,959,069.35-79,189,743.90

Finding the Fourth Proportional to 83,972,712.90, 125,959,069.35 and 79,189,743.90

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Solution

The fourth proportional to 83,972,712.90, 125,959,069.35 and 79,189,743.90 is: 118,784,615.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,972,712.90 : 125,959,069.35 = 79,189,743.90 : x
  2. Step 2: Convert to fraction form
    83,972,712.90/125,959,069.35 = 79,189,743.90/x
  3. Step 3: Cross multiply
    83,972,712.90x = 125,959,069.35 × 79,189,743.90
  4. Step 4: Simplify right side
    83,972,712.90x = 9,974,666,443,708,840
  5. Step 5: Solve for x
    x = 9,974,666,443,708,840/83,972,712.90
  6. Step 6: Final answer
    x = 118,784,615.85

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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.