Home / 21,306,247.20-31,972,492.80-9,181,519.20

Finding the Fourth Proportional to 21,306,247.20, 31,972,492.80 and 9,181,519.20

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Solution

The fourth proportional to 21,306,247.20, 31,972,492.80 and 9,181,519.20 is: 13,777,933.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,306,247.20 : 31,972,492.80 = 9,181,519.20 : x
  2. Step 2: Convert to fraction form
    21,306,247.20/31,972,492.80 = 9,181,519.20/x
  3. Step 3: Cross multiply
    21,306,247.20x = 31,972,492.80 × 9,181,519.20
  4. Step 4: Simplify right side
    21,306,247.20x = 293,556,056,515,061.75
  5. Step 5: Solve for x
    x = 293,556,056,515,061.75/21,306,247.20
  6. Step 6: Final answer
    x = 13,777,933.47

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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.