Home / 90,943,778.52-125,502,221.34-49,690,966.68

Finding the Fourth Proportional to 90,943,778.52, 125,502,221.34 and 49,690,966.68

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Solution

The fourth proportional to 90,943,778.52, 125,502,221.34 and 49,690,966.68 is: 68,573,428.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,943,778.52 : 125,502,221.34 = 49,690,966.68 : x
  2. Step 2: Convert to fraction form
    90,943,778.52/125,502,221.34 = 49,690,966.68/x
  3. Step 3: Cross multiply
    90,943,778.52x = 125,502,221.34 × 49,690,966.68
  4. Step 4: Simplify right side
    90,943,778.52x = 6,236,326,698,871,925
  5. Step 5: Solve for x
    x = 6,236,326,698,871,925/90,943,778.52
  6. Step 6: Final answer
    x = 68,573,428.56

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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.