Home / 115,505,561.28-173,141,757.02-72,405,031.88

Finding the Fourth Proportional to 115,505,561.28, 173,141,757.02 and 72,405,031.88

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Solution

The fourth proportional to 115,505,561.28, 173,141,757.02 and 72,405,031.88 is: 108,534,466.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,505,561.28 : 173,141,757.02 = 72,405,031.88 : x
  2. Step 2: Convert to fraction form
    115,505,561.28/173,141,757.02 = 72,405,031.88/x
  3. Step 3: Cross multiply
    115,505,561.28x = 173,141,757.02 × 72,405,031.88
  4. Step 4: Simplify right side
    115,505,561.28x = 12,536,334,435,564,578
  5. Step 5: Solve for x
    x = 12,536,334,435,564,578/115,505,561.28
  6. Step 6: Final answer
    x = 108,534,466.19

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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.