Home / 72,425,972.40-108,638,958.60-59,660,890.80

Finding the Fourth Proportional to 72,425,972.40, 108,638,958.60 and 59,660,890.80

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Solution

The fourth proportional to 72,425,972.40, 108,638,958.60 and 59,660,890.80 is: 89,491,336.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,425,972.40 : 108,638,958.60 = 59,660,890.80 : x
  2. Step 2: Convert to fraction form
    72,425,972.40/108,638,958.60 = 59,660,890.80/x
  3. Step 3: Cross multiply
    72,425,972.40x = 108,638,958.60 × 59,660,890.80
  4. Step 4: Simplify right side
    72,425,972.40x = 6,481,497,045,660,320
  5. Step 5: Solve for x
    x = 6,481,497,045,660,320/72,425,972.40
  6. Step 6: Final answer
    x = 89,491,336.20

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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.