Home / 28,155,982.38-38,855,255.68-15,278,926.38

Finding the Fourth Proportional to 28,155,982.38, 38,855,255.68 and 15,278,926.38

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Solution

The fourth proportional to 28,155,982.38, 38,855,255.68 and 15,278,926.38 is: 21,084,918.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,155,982.38 : 38,855,255.68 = 15,278,926.38 : x
  2. Step 2: Convert to fraction form
    28,155,982.38/38,855,255.68 = 15,278,926.38/x
  3. Step 3: Cross multiply
    28,155,982.38x = 38,855,255.68 × 15,278,926.38
  4. Step 4: Simplify right side
    28,155,982.38x = 593,666,591,010,796.88
  5. Step 5: Solve for x
    x = 593,666,591,010,796.88/28,155,982.38
  6. Step 6: Final answer
    x = 21,084,918.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.