Home / 72,425,939.40-108,638,909.10-59,660,857.80

Finding the Fourth Proportional to 72,425,939.40, 108,638,909.10 and 59,660,857.80

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Solution

The fourth proportional to 72,425,939.40, 108,638,909.10 and 59,660,857.80 is: 89,491,286.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,425,939.40 : 108,638,909.10 = 59,660,857.80 : x
  2. Step 2: Convert to fraction form
    72,425,939.40/108,638,909.10 = 59,660,857.80/x
  3. Step 3: Cross multiply
    72,425,939.40x = 108,638,909.10 × 59,660,857.80
  4. Step 4: Simplify right side
    72,425,939.40x = 6,481,490,507,362,225
  5. Step 5: Solve for x
    x = 6,481,490,507,362,225/72,425,939.40
  6. Step 6: Final answer
    x = 89,491,286.70

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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.