Home / 13,419,021.70-20,128,532.55-8,632,116.10

Finding the Fourth Proportional to 13,419,021.70, 20,128,532.55 and 8,632,116.10

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Solution

The fourth proportional to 13,419,021.70, 20,128,532.55 and 8,632,116.10 is: 12,948,174.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,419,021.70 : 20,128,532.55 = 8,632,116.10 : x
  2. Step 2: Convert to fraction form
    13,419,021.70/20,128,532.55 = 8,632,116.10/x
  3. Step 3: Cross multiply
    13,419,021.70x = 20,128,532.55 × 8,632,116.10
  4. Step 4: Simplify right side
    13,419,021.70x = 173,751,829,894,229.06
  5. Step 5: Solve for x
    x = 173,751,829,894,229.06/13,419,021.70
  6. Step 6: Final answer
    x = 12,948,174.15

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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.