Home / 20,401,517.72-30,606,315.40-5,828,561.28

Finding the Fourth Proportional to 20,401,517.72, 30,606,315.40 and 5,828,561.28

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Solution

The fourth proportional to 20,401,517.72, 30,606,315.40 and 5,828,561.28 is: 8,743,995.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,401,517.72 : 30,606,315.40 = 5,828,561.28 : x
  2. Step 2: Convert to fraction form
    20,401,517.72/30,606,315.40 = 5,828,561.28/x
  3. Step 3: Cross multiply
    20,401,517.72x = 30,606,315.40 × 5,828,561.28
  4. Step 4: Simplify right side
    20,401,517.72x = 178,390,784,834,764.91
  5. Step 5: Solve for x
    x = 178,390,784,834,764.91/20,401,517.72
  6. Step 6: Final answer
    x = 8,743,995.78

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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.