Home / 121,418,528.60-167,558,070.80-65,663,947.80

Finding the Fourth Proportional to 121,418,528.60, 167,558,070.80 and 65,663,947.80

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Solution

The fourth proportional to 121,418,528.60, 167,558,070.80 and 65,663,947.80 is: 90,616,519.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,418,528.60 : 167,558,070.80 = 65,663,947.80 : x
  2. Step 2: Convert to fraction form
    121,418,528.60/167,558,070.80 = 65,663,947.80/x
  3. Step 3: Cross multiply
    121,418,528.60x = 167,558,070.80 × 65,663,947.80
  4. Step 4: Simplify right side
    121,418,528.60x = 11,002,524,414,479,904
  5. Step 5: Solve for x
    x = 11,002,524,414,479,904/121,418,528.60
  6. Step 6: Final answer
    x = 90,616,519.09

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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.