Home / 658,289,305.55-987,282,856.77-392,470,232.90

Finding the Fourth Proportional to 658,289,305.55, 987,282,856.77 and 392,470,232.90

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Solution

The fourth proportional to 658,289,305.55, 987,282,856.77 and 392,470,232.90 is: 588,615,263.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,289,305.55 : 987,282,856.77 = 392,470,232.90 : x
  2. Step 2: Convert to fraction form
    658,289,305.55/987,282,856.77 = 392,470,232.90/x
  3. Step 3: Cross multiply
    658,289,305.55x = 987,282,856.77 × 392,470,232.90
  4. Step 4: Simplify right side
    658,289,305.55x = 387,479,132,729,762,816
  5. Step 5: Solve for x
    x = 387,479,132,729,762,816/658,289,305.55
  6. Step 6: Final answer
    x = 588,615,263.02

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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.