Home / 83,045,363.55-124,568,045.33-78,262,394.55

Finding the Fourth Proportional to 83,045,363.55, 124,568,045.33 and 78,262,394.55

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Solution

The fourth proportional to 83,045,363.55, 124,568,045.33 and 78,262,394.55 is: 117,393,591.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,045,363.55 : 124,568,045.33 = 78,262,394.55 : x
  2. Step 2: Convert to fraction form
    83,045,363.55/124,568,045.33 = 78,262,394.55/x
  3. Step 3: Cross multiply
    83,045,363.55x = 124,568,045.33 × 78,262,394.55
  4. Step 4: Simplify right side
    83,045,363.55x = 9,748,993,511,547,432
  5. Step 5: Solve for x
    x = 9,748,993,511,547,432/83,045,363.55
  6. Step 6: Final answer
    x = 117,393,591.83

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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.