Home / 265,965,391.20-398,948,086.80-163,928,719.20

Finding the Fourth Proportional to 265,965,391.20, 398,948,086.80 and 163,928,719.20

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Solution

The fourth proportional to 265,965,391.20, 398,948,086.80 and 163,928,719.20 is: 245,893,078.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,965,391.20 : 398,948,086.80 = 163,928,719.20 : x
  2. Step 2: Convert to fraction form
    265,965,391.20/398,948,086.80 = 163,928,719.20/x
  3. Step 3: Cross multiply
    265,965,391.20x = 398,948,086.80 × 163,928,719.20
  4. Step 4: Simplify right side
    265,965,391.20x = 65,399,048,896,414,424
  5. Step 5: Solve for x
    x = 65,399,048,896,414,424/265,965,391.20
  6. Step 6: Final answer
    x = 245,893,078.80

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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.