Home / 18,722,516.60-28,083,774.90-9,144,039.80

Finding the Fourth Proportional to 18,722,516.60, 28,083,774.90 and 9,144,039.80

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Solution

The fourth proportional to 18,722,516.60, 28,083,774.90 and 9,144,039.80 is: 13,716,059.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,722,516.60 : 28,083,774.90 = 9,144,039.80 : x
  2. Step 2: Convert to fraction form
    18,722,516.60/28,083,774.90 = 9,144,039.80/x
  3. Step 3: Cross multiply
    18,722,516.60x = 28,083,774.90 × 9,144,039.80
  4. Step 4: Simplify right side
    18,722,516.60x = 256,799,155,419,841.03
  5. Step 5: Solve for x
    x = 256,799,155,419,841.03/18,722,516.60
  6. Step 6: Final answer
    x = 13,716,059.70

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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.