Home / 660,072,726,520.36-990,107,853,884.88-206,826,328,657.18

Finding the Fourth Proportional to 660,072,726,520.36, 990,107,853,884.88 and 206,826,328,657.18

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Solution

The fourth proportional to 660,072,726,520.36, 990,107,853,884.88 and 206,826,328,657.18 is: 310,239,105,731.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,072,726,520.36 : 990,107,853,884.88 = 206,826,328,657.18 : x
  2. Step 2: Convert to fraction form
    660,072,726,520.36/990,107,853,884.88 = 206,826,328,657.18/x
  3. Step 3: Cross multiply
    660,072,726,520.36x = 990,107,853,884.88 × 206,826,328,657.18
  4. Step 4: Simplify right side
    660,072,726,520.36x = 204,780,372,393,649,344,872,448
  5. Step 5: Solve for x
    x = 204,780,372,393,649,344,872,448/660,072,726,520.36
  6. Step 6: Final answer
    x = 310,239,105,731.83

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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.