Home / 28,748,221.80-39,672,340.75-15,695,480.33

Finding the Fourth Proportional to 28,748,221.80, 39,672,340.75 and 15,695,480.33

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Solution

The fourth proportional to 28,748,221.80, 39,672,340.75 and 15,695,480.33 is: 21,659,650.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,748,221.80 : 39,672,340.75 = 15,695,480.33 : x
  2. Step 2: Convert to fraction form
    28,748,221.80/39,672,340.75 = 15,695,480.33/x
  3. Step 3: Cross multiply
    28,748,221.80x = 39,672,340.75 × 15,695,480.33
  4. Step 4: Simplify right side
    28,748,221.80x = 622,676,443,609,843.25
  5. Step 5: Solve for x
    x = 622,676,443,609,843.25/28,748,221.80
  6. Step 6: Final answer
    x = 21,659,650.74

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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.