Home / 12,740,036.82-17,580,170.85-7,157,846.29

Finding the Fourth Proportional to 12,740,036.82, 17,580,170.85 and 7,157,846.29

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Solution

The fourth proportional to 12,740,036.82, 17,580,170.85 and 7,157,846.29 is: 9,877,221.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,740,036.82 : 17,580,170.85 = 7,157,846.29 : x
  2. Step 2: Convert to fraction form
    12,740,036.82/17,580,170.85 = 7,157,846.29/x
  3. Step 3: Cross multiply
    12,740,036.82x = 17,580,170.85 × 7,157,846.29
  4. Step 4: Simplify right side
    12,740,036.82x = 125,836,160,660,449.41
  5. Step 5: Solve for x
    x = 125,836,160,660,449.41/12,740,036.82
  6. Step 6: Final answer
    x = 9,877,221.11

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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.