Home / 1,325,942,686.80-1,988,914,030.20-809,382,034.80

Finding the Fourth Proportional to 1,325,942,686.80, 1,988,914,030.20 and 809,382,034.80

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Solution

The fourth proportional to 1,325,942,686.80, 1,988,914,030.20 and 809,382,034.80 is: 1,214,073,052.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,325,942,686.80 : 1,988,914,030.20 = 809,382,034.80 : x
  2. Step 2: Convert to fraction form
    1,325,942,686.80/1,988,914,030.20 = 809,382,034.80/x
  3. Step 3: Cross multiply
    1,325,942,686.80x = 1,988,914,030.20 × 809,382,034.80
  4. Step 4: Simplify right side
    1,325,942,686.80x = 1,609,791,284,805,544,704
  5. Step 5: Solve for x
    x = 1,609,791,284,805,544,704/1,325,942,686.80
  6. Step 6: Final answer
    x = 1,214,073,052.20

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Double scale
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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.