Home / 681,556,231.38-940,387,407.20-413,626,125.30

Finding the Fourth Proportional to 681,556,231.38, 940,387,407.20 and 413,626,125.30

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Solution

The fourth proportional to 681,556,231.38, 940,387,407.20 and 413,626,125.30 is: 570,706,834.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,556,231.38 : 940,387,407.20 = 413,626,125.30 : x
  2. Step 2: Convert to fraction form
    681,556,231.38/940,387,407.20 = 413,626,125.30/x
  3. Step 3: Cross multiply
    681,556,231.38x = 940,387,407.20 × 413,626,125.30
  4. Step 4: Simplify right side
    681,556,231.38x = 388,968,799,521,049,344
  5. Step 5: Solve for x
    x = 388,968,799,521,049,344/681,556,231.38
  6. Step 6: Final answer
    x = 570,706,834.76

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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.