Home / 84,247,630.20-126,371,445.30-68,942,129.40

Finding the Fourth Proportional to 84,247,630.20, 126,371,445.30 and 68,942,129.40

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Solution

The fourth proportional to 84,247,630.20, 126,371,445.30 and 68,942,129.40 is: 103,413,194.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,247,630.20 : 126,371,445.30 = 68,942,129.40 : x
  2. Step 2: Convert to fraction form
    84,247,630.20/126,371,445.30 = 68,942,129.40/x
  3. Step 3: Cross multiply
    84,247,630.20x = 126,371,445.30 × 68,942,129.40
  4. Step 4: Simplify right side
    84,247,630.20x = 8,712,316,534,337,622
  5. Step 5: Solve for x
    x = 8,712,316,534,337,622/84,247,630.20
  6. Step 6: Final answer
    x = 103,413,194.10

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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.