Home / 72,584,004.20-108,876,006.30-65,865,540.20

Finding the Fourth Proportional to 72,584,004.20, 108,876,006.30 and 65,865,540.20

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Solution

The fourth proportional to 72,584,004.20, 108,876,006.30 and 65,865,540.20 is: 98,798,310.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,584,004.20 : 108,876,006.30 = 65,865,540.20 : x
  2. Step 2: Convert to fraction form
    72,584,004.20/108,876,006.30 = 65,865,540.20/x
  3. Step 3: Cross multiply
    72,584,004.20x = 108,876,006.30 × 65,865,540.20
  4. Step 4: Simplify right side
    72,584,004.20x = 7,171,176,969,768,103
  5. Step 5: Solve for x
    x = 7,171,176,969,768,103/72,584,004.20
  6. Step 6: Final answer
    x = 98,798,310.30

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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.