Home / 658,289,302.17-987,282,851.72-392,470,229.52

Finding the Fourth Proportional to 658,289,302.17, 987,282,851.72 and 392,470,229.52

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Solution

The fourth proportional to 658,289,302.17, 987,282,851.72 and 392,470,229.52 is: 588,615,257.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,289,302.17 : 987,282,851.72 = 392,470,229.52 : x
  2. Step 2: Convert to fraction form
    658,289,302.17/987,282,851.72 = 392,470,229.52/x
  3. Step 3: Cross multiply
    658,289,302.17x = 987,282,851.72 × 392,470,229.52
  4. Step 4: Simplify right side
    658,289,302.17x = 387,479,127,413,746,176
  5. Step 5: Solve for x
    x = 387,479,127,413,746,176/658,289,302.17
  6. Step 6: Final answer
    x = 588,615,257.97

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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.