Home / 20,424,119.88-30,638,419.68-10,191,553.30

Finding the Fourth Proportional to 20,424,119.88, 30,638,419.68 and 10,191,553.30

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Solution

The fourth proportional to 20,424,119.88, 30,638,419.68 and 10,191,553.30 is: 15,288,447.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,424,119.88 : 30,638,419.68 = 10,191,553.30 : x
  2. Step 2: Convert to fraction form
    20,424,119.88/30,638,419.68 = 10,191,553.30/x
  3. Step 3: Cross multiply
    20,424,119.88x = 30,638,419.68 × 10,191,553.30
  4. Step 4: Simplify right side
    20,424,119.88x = 312,253,087,196,488.94
  5. Step 5: Solve for x
    x = 312,253,087,196,488.94/20,424,119.88
  6. Step 6: Final answer
    x = 15,288,447.63

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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.