Home / 198,145,340.10-297,218,010.15-120,661,242.30

Finding the Fourth Proportional to 198,145,340.10, 297,218,010.15 and 120,661,242.30

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Solution

The fourth proportional to 198,145,340.10, 297,218,010.15 and 120,661,242.30 is: 180,991,863.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,145,340.10 : 297,218,010.15 = 120,661,242.30 : x
  2. Step 2: Convert to fraction form
    198,145,340.10/297,218,010.15 = 120,661,242.30/x
  3. Step 3: Cross multiply
    198,145,340.10x = 297,218,010.15 × 120,661,242.30
  4. Step 4: Simplify right side
    198,145,340.10x = 35,862,694,338,633,004
  5. Step 5: Solve for x
    x = 35,862,694,338,633,004/198,145,340.10
  6. Step 6: Final answer
    x = 180,991,863.45

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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.