Home / 160,416,911.40-221,368,960.44-90,816,729.92

Finding the Fourth Proportional to 160,416,911.40, 221,368,960.44 and 90,816,729.92

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Solution

The fourth proportional to 160,416,911.40, 221,368,960.44 and 90,816,729.92 is: 125,323,476.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,416,911.40 : 221,368,960.44 = 90,816,729.92 : x
  2. Step 2: Convert to fraction form
    160,416,911.40/221,368,960.44 = 90,816,729.92/x
  3. Step 3: Cross multiply
    160,416,911.40x = 221,368,960.44 × 90,816,729.92
  4. Step 4: Simplify right side
    160,416,911.40x = 20,104,005,092,950,644
  5. Step 5: Solve for x
    x = 20,104,005,092,950,644/160,416,911.40
  6. Step 6: Final answer
    x = 125,323,476.92

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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.