Home / 25,425,999.20-38,138,998.80-18,222,312.80

Finding the Fourth Proportional to 25,425,999.20, 38,138,998.80 and 18,222,312.80

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Solution

The fourth proportional to 25,425,999.20, 38,138,998.80 and 18,222,312.80 is: 27,333,469.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,425,999.20 : 38,138,998.80 = 18,222,312.80 : x
  2. Step 2: Convert to fraction form
    25,425,999.20/38,138,998.80 = 18,222,312.80/x
  3. Step 3: Cross multiply
    25,425,999.20x = 38,138,998.80 × 18,222,312.80
  4. Step 4: Simplify right side
    25,425,999.20x = 694,980,766,012,424.62
  5. Step 5: Solve for x
    x = 694,980,766,012,424.62/25,425,999.20
  6. Step 6: Final answer
    x = 27,333,469.20

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1.5x scale

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.