Home / 90,899,409.52-125,439,244.68-49,646,468.08

Finding the Fourth Proportional to 90,899,409.52, 125,439,244.68 and 49,646,468.08

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Solution

The fourth proportional to 90,899,409.52, 125,439,244.68 and 49,646,468.08 is: 68,511,066.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,899,409.52 : 125,439,244.68 = 49,646,468.08 : x
  2. Step 2: Convert to fraction form
    90,899,409.52/125,439,244.68 = 49,646,468.08/x
  3. Step 3: Cross multiply
    90,899,409.52x = 125,439,244.68 × 49,646,468.08
  4. Step 4: Simplify right side
    90,899,409.52x = 6,227,615,456,984,930
  5. Step 5: Solve for x
    x = 6,227,615,456,984,930/90,899,409.52
  6. Step 6: Final answer
    x = 68,511,066.13

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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.