Home / 287,546,660.48-396,770,049.60-163,771,558.40

Finding the Fourth Proportional to 287,546,660.48, 396,770,049.60 and 163,771,558.40

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Solution

The fourth proportional to 287,546,660.48, 396,770,049.60 and 163,771,558.40 is: 225,979,495.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,546,660.48 : 396,770,049.60 = 163,771,558.40 : x
  2. Step 2: Convert to fraction form
    287,546,660.48/396,770,049.60 = 163,771,558.40/x
  3. Step 3: Cross multiply
    287,546,660.48x = 396,770,049.60 × 163,771,558.40
  4. Step 4: Simplify right side
    287,546,660.48x = 64,979,649,349,437,304
  5. Step 5: Solve for x
    x = 64,979,649,349,437,304/287,546,660.48
  6. Step 6: Final answer
    x = 225,979,495.78

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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.