Home / 217,760,412.80-326,640,619.20-137,138,844.80

Finding the Fourth Proportional to 217,760,412.80, 326,640,619.20 and 137,138,844.80

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Solution

The fourth proportional to 217,760,412.80, 326,640,619.20 and 137,138,844.80 is: 205,708,267.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,760,412.80 : 326,640,619.20 = 137,138,844.80 : x
  2. Step 2: Convert to fraction form
    217,760,412.80/326,640,619.20 = 137,138,844.80/x
  3. Step 3: Cross multiply
    217,760,412.80x = 326,640,619.20 × 137,138,844.80
  4. Step 4: Simplify right side
    217,760,412.80x = 44,795,117,181,844,704
  5. Step 5: Solve for x
    x = 44,795,117,181,844,704/217,760,412.80
  6. Step 6: Final answer
    x = 205,708,267.20

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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.