Home / 12,121,461.30-18,191,049.30-8,534,234.55

Finding the Fourth Proportional to 12,121,461.30, 18,191,049.30 and 8,534,234.55

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Solution

The fourth proportional to 12,121,461.30, 18,191,049.30 and 8,534,234.55 is: 12,807,587.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,121,461.30 : 18,191,049.30 = 8,534,234.55 : x
  2. Step 2: Convert to fraction form
    12,121,461.30/18,191,049.30 = 8,534,234.55/x
  3. Step 3: Cross multiply
    12,121,461.30x = 18,191,049.30 × 8,534,234.55
  4. Step 4: Simplify right side
    12,121,461.30x = 155,246,681,436,813.34
  5. Step 5: Solve for x
    x = 155,246,681,436,813.34/12,121,461.30
  6. Step 6: Final answer
    x = 12,807,587.93

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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.