Home / 84,397,084.20-126,259,703.10-73,162,319.40

Finding the Fourth Proportional to 84,397,084.20, 126,259,703.10 and 73,162,319.40

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Solution

The fourth proportional to 84,397,084.20, 126,259,703.10 and 73,162,319.40 is: 109,452,273.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,397,084.20 : 126,259,703.10 = 73,162,319.40 : x
  2. Step 2: Convert to fraction form
    84,397,084.20/126,259,703.10 = 73,162,319.40/x
  3. Step 3: Cross multiply
    84,397,084.20x = 126,259,703.10 × 73,162,319.40
  4. Step 4: Simplify right side
    84,397,084.20x = 9,237,452,725,551,370
  5. Step 5: Solve for x
    x = 9,237,452,725,551,370/84,397,084.20
  6. Step 6: Final answer
    x = 109,452,273.30

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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.