Home / 8,420,648.92-12,632,531.61-2,664,831.22

Finding the Fourth Proportional to 8,420,648.92, 12,632,531.61 and 2,664,831.22

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Solution

The fourth proportional to 8,420,648.92, 12,632,531.61 and 2,664,831.22 is: 3,997,739.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,420,648.92 : 12,632,531.61 = 2,664,831.22 : x
  2. Step 2: Convert to fraction form
    8,420,648.92/12,632,531.61 = 2,664,831.22/x
  3. Step 3: Cross multiply
    8,420,648.92x = 12,632,531.61 × 2,664,831.22
  4. Step 4: Simplify right side
    8,420,648.92x = 33,663,564,621,964.86
  5. Step 5: Solve for x
    x = 33,663,564,621,964.86/8,420,648.92
  6. Step 6: Final answer
    x = 3,997,739.95

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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.