Home / 199,278,001.20-298,917,001.80-91,782,577.20

Finding the Fourth Proportional to 199,278,001.20, 298,917,001.80 and 91,782,577.20

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Solution

The fourth proportional to 199,278,001.20, 298,917,001.80 and 91,782,577.20 is: 137,673,865.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,278,001.20 : 298,917,001.80 = 91,782,577.20 : x
  2. Step 2: Convert to fraction form
    199,278,001.20/298,917,001.80 = 91,782,577.20/x
  3. Step 3: Cross multiply
    199,278,001.20x = 298,917,001.80 × 91,782,577.20
  4. Step 4: Simplify right side
    199,278,001.20x = 27,435,372,794,101,040
  5. Step 5: Solve for x
    x = 27,435,372,794,101,040/199,278,001.20
  6. Step 6: Final answer
    x = 137,673,865.80

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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.