Home / 78,734,016.30-118,101,024.45-42,454,310.70

Finding the Fourth Proportional to 78,734,016.30, 118,101,024.45 and 42,454,310.70

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Solution

The fourth proportional to 78,734,016.30, 118,101,024.45 and 42,454,310.70 is: 63,681,466.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,734,016.30 : 118,101,024.45 = 42,454,310.70 : x
  2. Step 2: Convert to fraction form
    78,734,016.30/118,101,024.45 = 42,454,310.70/x
  3. Step 3: Cross multiply
    78,734,016.30x = 118,101,024.45 × 42,454,310.70
  4. Step 4: Simplify right side
    78,734,016.30x = 5,013,897,585,988,597
  5. Step 5: Solve for x
    x = 5,013,897,585,988,597/78,734,016.30
  6. Step 6: Final answer
    x = 63,681,466.05

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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.