Home / 126,198,001.80-189,297,002.70-39,943,159.20

Finding the Fourth Proportional to 126,198,001.80, 189,297,002.70 and 39,943,159.20

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Solution

The fourth proportional to 126,198,001.80, 189,297,002.70 and 39,943,159.20 is: 59,914,738.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,198,001.80 : 189,297,002.70 = 39,943,159.20 : x
  2. Step 2: Convert to fraction form
    126,198,001.80/189,297,002.70 = 39,943,159.20/x
  3. Step 3: Cross multiply
    126,198,001.80x = 189,297,002.70 × 39,943,159.20
  4. Step 4: Simplify right side
    126,198,001.80x = 7,561,120,314,928,930
  5. Step 5: Solve for x
    x = 7,561,120,314,928,930/126,198,001.80
  6. Step 6: Final answer
    x = 59,914,738.80

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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.