Home / 20,221,231.30-30,328,857.13-7,438,746.66

Finding the Fourth Proportional to 20,221,231.30, 30,328,857.13 and 7,438,746.66

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Solution

The fourth proportional to 20,221,231.30, 30,328,857.13 and 7,438,746.66 is: 11,157,020.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,221,231.30 : 30,328,857.13 = 7,438,746.66 : x
  2. Step 2: Convert to fraction form
    20,221,231.30/30,328,857.13 = 7,438,746.66/x
  3. Step 3: Cross multiply
    20,221,231.30x = 30,328,857.13 × 7,438,746.66
  4. Step 4: Simplify right side
    20,221,231.30x = 225,608,684,677,404.69
  5. Step 5: Solve for x
    x = 225,608,684,677,404.69/20,221,231.30
  6. Step 6: Final answer
    x = 11,157,020.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.