Home / 8,138,682.80-12,209,968.20-2,458,962.80

Finding the Fourth Proportional to 8,138,682.80, 12,209,968.20 and 2,458,962.80

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Solution

The fourth proportional to 8,138,682.80, 12,209,968.20 and 2,458,962.80 is: 3,689,031.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,138,682.80 : 12,209,968.20 = 2,458,962.80 : x
  2. Step 2: Convert to fraction form
    8,138,682.80/12,209,968.20 = 2,458,962.80/x
  3. Step 3: Cross multiply
    8,138,682.80x = 12,209,968.20 × 2,458,962.80
  4. Step 4: Simplify right side
    8,138,682.80x = 30,023,857,592,982.96
  5. Step 5: Solve for x
    x = 30,023,857,592,982.96/8,138,682.80
  6. Step 6: Final answer
    x = 3,689,031.55

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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.