Home / 1,283,240,548.71-1,770,826,138.29-726,311,638.35

Finding the Fourth Proportional to 1,283,240,548.71, 1,770,826,138.29 and 726,311,638.35

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Solution

The fourth proportional to 1,283,240,548.71, 1,770,826,138.29 and 726,311,638.35 is: 1,002,284,127.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,283,240,548.71 : 1,770,826,138.29 = 726,311,638.35 : x
  2. Step 2: Convert to fraction form
    1,283,240,548.71/1,770,826,138.29 = 726,311,638.35/x
  3. Step 3: Cross multiply
    1,283,240,548.71x = 1,770,826,138.29 × 726,311,638.35
  4. Step 4: Simplify right side
    1,283,240,548.71x = 1,286,171,633,734,413,568
  5. Step 5: Solve for x
    x = 1,286,171,633,734,413,568/1,283,240,548.71
  6. Step 6: Final answer
    x = 1,002,284,127.50

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.