Home / 487,211,155.38-730,859,694.86-137,460,283.38

Finding the Fourth Proportional to 487,211,155.38, 730,859,694.86 and 137,460,283.38

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Solution

The fourth proportional to 487,211,155.38, 730,859,694.86 and 137,460,283.38 is: 206,202,546.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,211,155.38 : 730,859,694.86 = 137,460,283.38 : x
  2. Step 2: Convert to fraction form
    487,211,155.38/730,859,694.86 = 137,460,283.38/x
  3. Step 3: Cross multiply
    487,211,155.38x = 730,859,694.86 × 137,460,283.38
  4. Step 4: Simplify right side
    487,211,155.38x = 100,464,180,766,819,568
  5. Step 5: Solve for x
    x = 100,464,180,766,819,568/487,211,155.38
  6. Step 6: Final answer
    x = 206,202,546.18

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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.