Home / 84,251,013.60-126,376,520.40-69,638,354.40

Finding the Fourth Proportional to 84,251,013.60, 126,376,520.40 and 69,638,354.40

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Solution

The fourth proportional to 84,251,013.60, 126,376,520.40 and 69,638,354.40 is: 104,457,531.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,251,013.60 : 126,376,520.40 = 69,638,354.40 : x
  2. Step 2: Convert to fraction form
    84,251,013.60/126,376,520.40 = 69,638,354.40/x
  3. Step 3: Cross multiply
    84,251,013.60x = 126,376,520.40 × 69,638,354.40
  4. Step 4: Simplify right side
    84,251,013.60x = 8,800,652,915,454,031
  5. Step 5: Solve for x
    x = 8,800,652,915,454,031/84,251,013.60
  6. Step 6: Final answer
    x = 104,457,531.60

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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.