Home / 98,680,155.21-136,179,691.61-54,627,889.88

Finding the Fourth Proportional to 98,680,155.21, 136,179,691.61 and 54,627,889.88

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Solution

The fourth proportional to 98,680,155.21, 136,179,691.61 and 54,627,889.88 is: 75,387,084.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,680,155.21 : 136,179,691.61 = 54,627,889.88 : x
  2. Step 2: Convert to fraction form
    98,680,155.21/136,179,691.61 = 54,627,889.88/x
  3. Step 3: Cross multiply
    98,680,155.21x = 136,179,691.61 × 54,627,889.88
  4. Step 4: Simplify right side
    98,680,155.21x = 7,439,209,196,209,401
  5. Step 5: Solve for x
    x = 7,439,209,196,209,401/98,680,155.21
  6. Step 6: Final answer
    x = 75,387,084.47

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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.