Home / 13,446,072.30-20,169,108.45-12,406,809.90

Finding the Fourth Proportional to 13,446,072.30, 20,169,108.45 and 12,406,809.90

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Solution

The fourth proportional to 13,446,072.30, 20,169,108.45 and 12,406,809.90 is: 18,610,214.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,446,072.30 : 20,169,108.45 = 12,406,809.90 : x
  2. Step 2: Convert to fraction form
    13,446,072.30/20,169,108.45 = 12,406,809.90/x
  3. Step 3: Cross multiply
    13,446,072.30x = 20,169,108.45 × 12,406,809.90
  4. Step 4: Simplify right side
    13,446,072.30x = 250,234,294,391,633.66
  5. Step 5: Solve for x
    x = 250,234,294,391,633.66/13,446,072.30
  6. Step 6: Final answer
    x = 18,610,214.85

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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.