Home / 112,472,135.08-155,149,084.90-65,423,908.78

Finding the Fourth Proportional to 112,472,135.08, 155,149,084.90 and 65,423,908.78

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Solution

The fourth proportional to 112,472,135.08, 155,149,084.90 and 65,423,908.78 is: 90,248,660.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,472,135.08 : 155,149,084.90 = 65,423,908.78 : x
  2. Step 2: Convert to fraction form
    112,472,135.08/155,149,084.90 = 65,423,908.78/x
  3. Step 3: Cross multiply
    112,472,135.08x = 155,149,084.90 × 65,423,908.78
  4. Step 4: Simplify right side
    112,472,135.08x = 10,150,459,577,491,984
  5. Step 5: Solve for x
    x = 10,150,459,577,491,984/112,472,135.08
  6. Step 6: Final answer
    x = 90,248,660.88

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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.