Home / 8,720,604.30-13,080,906.45-8,352,021.90

Finding the Fourth Proportional to 8,720,604.30, 13,080,906.45 and 8,352,021.90

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Solution

The fourth proportional to 8,720,604.30, 13,080,906.45 and 8,352,021.90 is: 12,528,032.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,720,604.30 : 13,080,906.45 = 8,352,021.90 : x
  2. Step 2: Convert to fraction form
    8,720,604.30/13,080,906.45 = 8,352,021.90/x
  3. Step 3: Cross multiply
    8,720,604.30x = 13,080,906.45 × 8,352,021.90
  4. Step 4: Simplify right side
    8,720,604.30x = 109,252,017,142,251.25
  5. Step 5: Solve for x
    x = 109,252,017,142,251.25/8,720,604.30
  6. Step 6: Final answer
    x = 12,528,032.85

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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.