Home / 12,115,002.30-18,172,503.45-8,713,779.90

Finding the Fourth Proportional to 12,115,002.30, 18,172,503.45 and 8,713,779.90

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Solution

The fourth proportional to 12,115,002.30, 18,172,503.45 and 8,713,779.90 is: 13,070,669.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,115,002.30 : 18,172,503.45 = 8,713,779.90 : x
  2. Step 2: Convert to fraction form
    12,115,002.30/18,172,503.45 = 8,713,779.90/x
  3. Step 3: Cross multiply
    12,115,002.30x = 18,172,503.45 × 8,713,779.90
  4. Step 4: Simplify right side
    12,115,002.30x = 158,351,195,295,290.66
  5. Step 5: Solve for x
    x = 158,351,195,295,290.66/12,115,002.30
  6. Step 6: Final answer
    x = 13,070,669.85

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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.