Home / 13,902,430.10-20,853,645.15-8,219,729.30

Finding the Fourth Proportional to 13,902,430.10, 20,853,645.15 and 8,219,729.30

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Solution

The fourth proportional to 13,902,430.10, 20,853,645.15 and 8,219,729.30 is: 12,329,593.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,902,430.10 : 20,853,645.15 = 8,219,729.30 : x
  2. Step 2: Convert to fraction form
    13,902,430.10/20,853,645.15 = 8,219,729.30/x
  3. Step 3: Cross multiply
    13,902,430.10x = 20,853,645.15 × 8,219,729.30
  4. Step 4: Simplify right side
    13,902,430.10x = 171,411,318,051,257.88
  5. Step 5: Solve for x
    x = 171,411,318,051,257.88/13,902,430.10
  6. Step 6: Final answer
    x = 12,329,593.95

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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.