Home / 8,538,661.12-12,812,200.04-3,990,023.92

Finding the Fourth Proportional to 8,538,661.12, 12,812,200.04 and 3,990,023.92

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Solution

The fourth proportional to 8,538,661.12, 12,812,200.04 and 3,990,023.92 is: 5,987,002.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,538,661.12 : 12,812,200.04 = 3,990,023.92 : x
  2. Step 2: Convert to fraction form
    8,538,661.12/12,812,200.04 = 3,990,023.92/x
  3. Step 3: Cross multiply
    8,538,661.12x = 12,812,200.04 × 3,990,023.92
  4. Step 4: Simplify right side
    8,538,661.12x = 51,120,984,627,424.95
  5. Step 5: Solve for x
    x = 51,120,984,627,424.95/8,538,661.12
  6. Step 6: Final answer
    x = 5,987,002.40

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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.