Home / 28,608,742.98-39,480,260.49-15,556,143.78

Finding the Fourth Proportional to 28,608,742.98, 39,480,260.49 and 15,556,143.78

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Solution

The fourth proportional to 28,608,742.98, 39,480,260.49 and 15,556,143.78 is: 21,467,584.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,608,742.98 : 39,480,260.49 = 15,556,143.78 : x
  2. Step 2: Convert to fraction form
    28,608,742.98/39,480,260.49 = 15,556,143.78/x
  3. Step 3: Cross multiply
    28,608,742.98x = 39,480,260.49 × 15,556,143.78
  4. Step 4: Simplify right side
    28,608,742.98x = 614,160,608,654,293.25
  5. Step 5: Solve for x
    x = 614,160,608,654,293.25/28,608,742.98
  6. Step 6: Final answer
    x = 21,467,584.55

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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.