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Finding the Fourth Proportional to 8,369,831.76, 12,549,344.76 and 3,580,645.20

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Solution

The fourth proportional to 8,369,831.76, 12,549,344.76 and 3,580,645.20 is: 5,368,656.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,369,831.76 : 12,549,344.76 = 3,580,645.20 : x
  2. Step 2: Convert to fraction form
    8,369,831.76/12,549,344.76 = 3,580,645.20/x
  3. Step 3: Cross multiply
    8,369,831.76x = 12,549,344.76 × 3,580,645.20
  4. Step 4: Simplify right side
    8,369,831.76x = 44,934,751,078,039.16
  5. Step 5: Solve for x
    x = 44,934,751,078,039.16/8,369,831.76
  6. Step 6: Final answer
    x = 5,368,656.43

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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.