Home / 160,513,091.80-221,521,728-90,910,854.52

Finding the Fourth Proportional to 160,513,091.80, 221,521,728 and 90,910,854.52

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Solution

The fourth proportional to 160,513,091.80, 221,521,728 and 90,910,854.52 is: 125,464,716.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,513,091.80 : 221,521,728 = 90,910,854.52 : x
  2. Step 2: Convert to fraction form
    160,513,091.80/221,521,728 = 90,910,854.52/x
  3. Step 3: Cross multiply
    160,513,091.80x = 221,521,728 × 90,910,854.52
  4. Step 4: Simplify right side
    160,513,091.80x = 20,138,729,587,227,008
  5. Step 5: Solve for x
    x = 20,138,729,587,227,008/160,513,091.80
  6. Step 6: Final answer
    x = 125,464,716.69

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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.