Home / 19,156,716.90-28,749,072.15-13,488,012.90

Finding the Fourth Proportional to 19,156,716.90, 28,749,072.15 and 13,488,012.90

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Solution

The fourth proportional to 19,156,716.90, 28,749,072.15 and 13,488,012.90 is: 20,241,874.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,156,716.90 : 28,749,072.15 = 13,488,012.90 : x
  2. Step 2: Convert to fraction form
    19,156,716.90/28,749,072.15 = 13,488,012.90/x
  3. Step 3: Cross multiply
    19,156,716.90x = 28,749,072.15 × 13,488,012.90
  4. Step 4: Simplify right side
    19,156,716.90x = 387,767,856,022,230.75
  5. Step 5: Solve for x
    x = 387,767,856,022,230.75/19,156,716.90
  6. Step 6: Final answer
    x = 20,241,874.33

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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.