Home / 121,619,591.62-167,832,962.22-65,864,560.18

Finding the Fourth Proportional to 121,619,591.62, 167,832,962.22 and 65,864,560.18

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Solution

The fourth proportional to 121,619,591.62, 167,832,962.22 and 65,864,560.18 is: 90,891,969.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,619,591.62 : 167,832,962.22 = 65,864,560.18 : x
  2. Step 2: Convert to fraction form
    121,619,591.62/167,832,962.22 = 65,864,560.18/x
  3. Step 3: Cross multiply
    121,619,591.62x = 167,832,962.22 × 65,864,560.18
  4. Step 4: Simplify right side
    121,619,591.62x = 11,054,244,240,326,856
  5. Step 5: Solve for x
    x = 11,054,244,240,326,856/121,619,591.62
  6. Step 6: Final answer
    x = 90,891,969.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.