Home / 658,289,301.80-987,282,851.15-392,470,229.14

Finding the Fourth Proportional to 658,289,301.80, 987,282,851.15 and 392,470,229.14

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Solution

The fourth proportional to 658,289,301.80, 987,282,851.15 and 392,470,229.14 is: 588,615,257.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,289,301.80 : 987,282,851.15 = 392,470,229.14 : x
  2. Step 2: Convert to fraction form
    658,289,301.80/987,282,851.15 = 392,470,229.14/x
  3. Step 3: Cross multiply
    658,289,301.80x = 987,282,851.15 × 392,470,229.14
  4. Step 4: Simplify right side
    658,289,301.80x = 387,479,126,815,345,984
  5. Step 5: Solve for x
    x = 387,479,126,815,345,984/658,289,301.80
  6. Step 6: Final answer
    x = 588,615,257.39

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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.