Home / 12,504,581.22-18,756,521.91-3,985,428.90

Finding the Fourth Proportional to 12,504,581.22, 18,756,521.91 and 3,985,428.90

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Solution

The fourth proportional to 12,504,581.22, 18,756,521.91 and 3,985,428.90 is: 5,978,031.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,504,581.22 : 18,756,521.91 = 3,985,428.90 : x
  2. Step 2: Convert to fraction form
    12,504,581.22/18,756,521.91 = 3,985,428.90/x
  3. Step 3: Cross multiply
    12,504,581.22x = 18,756,521.91 × 3,985,428.90
  4. Step 4: Simplify right side
    12,504,581.22x = 74,752,784,483,597.20
  5. Step 5: Solve for x
    x = 74,752,784,483,597.20/12,504,581.22
  6. Step 6: Final answer
    x = 5,978,031.82

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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.