Home / 72,606,658.20-108,909,987.30-72,181,505.40

Finding the Fourth Proportional to 72,606,658.20, 108,909,987.30 and 72,181,505.40

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Solution

The fourth proportional to 72,606,658.20, 108,909,987.30 and 72,181,505.40 is: 108,272,258.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,606,658.20 : 108,909,987.30 = 72,181,505.40 : x
  2. Step 2: Convert to fraction form
    72,606,658.20/108,909,987.30 = 72,181,505.40/x
  3. Step 3: Cross multiply
    72,606,658.20x = 108,909,987.30 × 72,181,505.40
  4. Step 4: Simplify right side
    72,606,658.20x = 7,861,286,836,408,882
  5. Step 5: Solve for x
    x = 7,861,286,836,408,882/72,606,658.20
  6. Step 6: Final answer
    x = 108,272,258.10

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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.