Home / 1,221,760,217.40-1,832,640,326.10-445,431,204.60

Finding the Fourth Proportional to 1,221,760,217.40, 1,832,640,326.10 and 445,431,204.60

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Solution

The fourth proportional to 1,221,760,217.40, 1,832,640,326.10 and 445,431,204.60 is: 668,146,806.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,760,217.40 : 1,832,640,326.10 = 445,431,204.60 : x
  2. Step 2: Convert to fraction form
    1,221,760,217.40/1,832,640,326.10 = 445,431,204.60/x
  3. Step 3: Cross multiply
    1,221,760,217.40x = 1,832,640,326.10 × 445,431,204.60
  4. Step 4: Simplify right side
    1,221,760,217.40x = 816,315,188,053,259,776
  5. Step 5: Solve for x
    x = 816,315,188,053,259,776/1,221,760,217.40
  6. Step 6: Final answer
    x = 668,146,806.90

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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.