Home / 658,289,300.67-987,282,849.47-392,470,228.02

Finding the Fourth Proportional to 658,289,300.67, 987,282,849.47 and 392,470,228.02

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Solution

The fourth proportional to 658,289,300.67, 987,282,849.47 and 392,470,228.02 is: 588,615,255.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,289,300.67 : 987,282,849.47 = 392,470,228.02 : x
  2. Step 2: Convert to fraction form
    658,289,300.67/987,282,849.47 = 392,470,228.02/x
  3. Step 3: Cross multiply
    658,289,300.67x = 987,282,849.47 × 392,470,228.02
  4. Step 4: Simplify right side
    658,289,300.67x = 387,479,125,053,466,240
  5. Step 5: Solve for x
    x = 387,479,125,053,466,240/658,289,300.67
  6. Step 6: Final answer
    x = 588,615,255.72

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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.