Home / 12,690,237.20-19,012,261.08-11,329,748.24

Finding the Fourth Proportional to 12,690,237.20, 19,012,261.08 and 11,329,748.24

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Solution

The fourth proportional to 12,690,237.20, 19,012,261.08 and 11,329,748.24 is: 16,974,003.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,690,237.20 : 19,012,261.08 = 11,329,748.24 : x
  2. Step 2: Convert to fraction form
    12,690,237.20/19,012,261.08 = 11,329,748.24/x
  3. Step 3: Cross multiply
    12,690,237.20x = 19,012,261.08 × 11,329,748.24
  4. Step 4: Simplify right side
    12,690,237.20x = 215,404,131,509,550.47
  5. Step 5: Solve for x
    x = 215,404,131,509,550.47/12,690,237.20
  6. Step 6: Final answer
    x = 16,974,003.57

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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.