Home / 20,412,451.90-30,618,677.85-13,945,930.30

Finding the Fourth Proportional to 20,412,451.90, 30,618,677.85 and 13,945,930.30

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Solution

The fourth proportional to 20,412,451.90, 30,618,677.85 and 13,945,930.30 is: 20,918,895.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,412,451.90 : 30,618,677.85 = 13,945,930.30 : x
  2. Step 2: Convert to fraction form
    20,412,451.90/30,618,677.85 = 13,945,930.30/x
  3. Step 3: Cross multiply
    20,412,451.90x = 30,618,677.85 × 13,945,930.30
  4. Step 4: Simplify right side
    20,412,451.90x = 427,005,947,174,253.88
  5. Step 5: Solve for x
    x = 427,005,947,174,253.88/20,412,451.90
  6. Step 6: Final answer
    x = 20,918,895.45

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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.