Home / 13,668,359.85-20,512,633.32-6,479,919

Finding the Fourth Proportional to 13,668,359.85, 20,512,633.32 and 6,479,919

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Solution

The fourth proportional to 13,668,359.85, 20,512,633.32 and 6,479,919 is: 9,724,663.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,668,359.85 : 20,512,633.32 = 6,479,919 : x
  2. Step 2: Convert to fraction form
    13,668,359.85/20,512,633.32 = 6,479,919/x
  3. Step 3: Cross multiply
    13,668,359.85x = 20,512,633.32 × 6,479,919
  4. Step 4: Simplify right side
    13,668,359.85x = 132,920,202,390,301.08
  5. Step 5: Solve for x
    x = 132,920,202,390,301.08/13,668,359.85
  6. Step 6: Final answer
    x = 9,724,663.66

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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.