Home / 84,587,440.70-126,739,443.45-72,399,727.10

Finding the Fourth Proportional to 84,587,440.70, 126,739,443.45 and 72,399,727.10

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Solution

The fourth proportional to 84,587,440.70, 126,739,443.45 and 72,399,727.10 is: 108,478,292.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,587,440.70 : 126,739,443.45 = 72,399,727.10 : x
  2. Step 2: Convert to fraction form
    84,587,440.70/126,739,443.45 = 72,399,727.10/x
  3. Step 3: Cross multiply
    84,587,440.70x = 126,739,443.45 × 72,399,727.10
  4. Step 4: Simplify right side
    84,587,440.70x = 9,175,901,118,585,882
  5. Step 5: Solve for x
    x = 9,175,901,118,585,882/84,587,440.70
  6. Step 6: Final answer
    x = 108,478,292.32

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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.