Home / 84,744,013.20-127,116,019.80-65,612,137.20

Finding the Fourth Proportional to 84,744,013.20, 127,116,019.80 and 65,612,137.20

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Solution

The fourth proportional to 84,744,013.20, 127,116,019.80 and 65,612,137.20 is: 98,418,205.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,744,013.20 : 127,116,019.80 = 65,612,137.20 : x
  2. Step 2: Convert to fraction form
    84,744,013.20/127,116,019.80 = 65,612,137.20/x
  3. Step 3: Cross multiply
    84,744,013.20x = 127,116,019.80 × 65,612,137.20
  4. Step 4: Simplify right side
    84,744,013.20x = 8,340,353,731,435,517
  5. Step 5: Solve for x
    x = 8,340,353,731,435,517/84,744,013.20
  6. Step 6: Final answer
    x = 98,418,205.80

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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.