Home / 79,177,995.40-118,766,755.49-20,090,261.42

Finding the Fourth Proportional to 79,177,995.40, 118,766,755.49 and 20,090,261.42

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Solution

The fourth proportional to 79,177,995.40, 118,766,755.49 and 20,090,261.42 is: 30,135,331.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,177,995.40 : 118,766,755.49 = 20,090,261.42 : x
  2. Step 2: Convert to fraction form
    79,177,995.40/118,766,755.49 = 20,090,261.42/x
  3. Step 3: Cross multiply
    79,177,995.40x = 118,766,755.49 × 20,090,261.42
  4. Step 4: Simplify right side
    79,177,995.40x = 2,386,055,165,205,486
  5. Step 5: Solve for x
    x = 2,386,055,165,205,486/79,177,995.40
  6. Step 6: Final answer
    x = 30,135,331.83

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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.