Home / 218,655,517.20-328,066,112.07-131,278,053.48

Finding the Fourth Proportional to 218,655,517.20, 328,066,112.07 and 131,278,053.48

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Solution

The fourth proportional to 218,655,517.20, 328,066,112.07 and 131,278,053.48 is: 196,966,814.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,655,517.20 : 328,066,112.07 = 131,278,053.48 : x
  2. Step 2: Convert to fraction form
    218,655,517.20/328,066,112.07 = 131,278,053.48/x
  3. Step 3: Cross multiply
    218,655,517.20x = 328,066,112.07 × 131,278,053.48
  4. Step 4: Simplify right side
    218,655,517.20x = 43,067,880,605,301,136
  5. Step 5: Solve for x
    x = 43,067,880,605,301,136/218,655,517.20
  6. Step 6: Final answer
    x = 196,966,814.09

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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.