Home / 83,045,388.30-124,568,082.45-78,262,419.30

Finding the Fourth Proportional to 83,045,388.30, 124,568,082.45 and 78,262,419.30

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Solution

The fourth proportional to 83,045,388.30, 124,568,082.45 and 78,262,419.30 is: 117,393,628.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,045,388.30 : 124,568,082.45 = 78,262,419.30 : x
  2. Step 2: Convert to fraction form
    83,045,388.30/124,568,082.45 = 78,262,419.30/x
  3. Step 3: Cross multiply
    83,045,388.30x = 124,568,082.45 × 78,262,419.30
  4. Step 4: Simplify right side
    83,045,388.30x = 9,748,999,500,098,872
  5. Step 5: Solve for x
    x = 9,748,999,500,098,872/83,045,388.30
  6. Step 6: Final answer
    x = 117,393,628.95

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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.