Home / 72,748,708.20-109,123,062.30-66,030,244.20

Finding the Fourth Proportional to 72,748,708.20, 109,123,062.30 and 66,030,244.20

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Solution

The fourth proportional to 72,748,708.20, 109,123,062.30 and 66,030,244.20 is: 99,045,366.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,748,708.20 : 109,123,062.30 = 66,030,244.20 : x
  2. Step 2: Convert to fraction form
    72,748,708.20/109,123,062.30 = 66,030,244.20/x
  3. Step 3: Cross multiply
    72,748,708.20x = 109,123,062.30 × 66,030,244.20
  4. Step 4: Simplify right side
    72,748,708.20x = 7,205,422,451,520,814
  5. Step 5: Solve for x
    x = 7,205,422,451,520,814/72,748,708.20
  6. Step 6: Final answer
    x = 99,045,366.30

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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.