Home / 13,581,695.70-20,372,543.55-8,187,569.55

Finding the Fourth Proportional to 13,581,695.70, 20,372,543.55 and 8,187,569.55

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Solution

The fourth proportional to 13,581,695.70, 20,372,543.55 and 8,187,569.55 is: 12,281,354.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,581,695.70 : 20,372,543.55 = 8,187,569.55 : x
  2. Step 2: Convert to fraction form
    13,581,695.70/20,372,543.55 = 8,187,569.55/x
  3. Step 3: Cross multiply
    13,581,695.70x = 20,372,543.55 × 8,187,569.55
  4. Step 4: Simplify right side
    13,581,695.70x = 166,801,617,226,028.91
  5. Step 5: Solve for x
    x = 166,801,617,226,028.91/13,581,695.70
  6. Step 6: Final answer
    x = 12,281,354.33

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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.