Home / 83,040,269.70-124,560,404.55-78,337,344.90

Finding the Fourth Proportional to 83,040,269.70, 124,560,404.55 and 78,337,344.90

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Solution

The fourth proportional to 83,040,269.70, 124,560,404.55 and 78,337,344.90 is: 117,506,017.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,040,269.70 : 124,560,404.55 = 78,337,344.90 : x
  2. Step 2: Convert to fraction form
    83,040,269.70/124,560,404.55 = 78,337,344.90/x
  3. Step 3: Cross multiply
    83,040,269.70x = 124,560,404.55 × 78,337,344.90
  4. Step 4: Simplify right side
    83,040,269.70x = 9,757,731,372,116,880
  5. Step 5: Solve for x
    x = 9,757,731,372,116,880/83,040,269.70
  6. Step 6: Final answer
    x = 117,506,017.35

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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.