Home / 84,132,001.20-126,198,001.80-26,628,772.80

Finding the Fourth Proportional to 84,132,001.20, 126,198,001.80 and 26,628,772.80

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Solution

The fourth proportional to 84,132,001.20, 126,198,001.80 and 26,628,772.80 is: 39,943,159.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,132,001.20 : 126,198,001.80 = 26,628,772.80 : x
  2. Step 2: Convert to fraction form
    84,132,001.20/126,198,001.80 = 26,628,772.80/x
  3. Step 3: Cross multiply
    84,132,001.20x = 126,198,001.80 × 26,628,772.80
  4. Step 4: Simplify right side
    84,132,001.20x = 3,360,497,917,746,191
  5. Step 5: Solve for x
    x = 3,360,497,917,746,191/84,132,001.20
  6. Step 6: Final answer
    x = 39,943,159.20

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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.