Home / 81,853,742.70-122,797,672.65-27,283,281.30

Finding the Fourth Proportional to 81,853,742.70, 122,797,672.65 and 27,283,281.30

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Solution

The fourth proportional to 81,853,742.70, 122,797,672.65 and 27,283,281.30 is: 40,930,607.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,853,742.70 : 122,797,672.65 = 27,283,281.30 : x
  2. Step 2: Convert to fraction form
    81,853,742.70/122,797,672.65 = 27,283,281.30/x
  3. Step 3: Cross multiply
    81,853,742.70x = 122,797,672.65 × 27,283,281.30
  4. Step 4: Simplify right side
    81,853,742.70x = 3,350,323,445,895,266.50
  5. Step 5: Solve for x
    x = 3,350,323,445,895,266.50/81,853,742.70
  6. Step 6: Final answer
    x = 40,930,607.88

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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.