Home / 287,157,951.44-396,275,922.12-156,777,755.60

Finding the Fourth Proportional to 287,157,951.44, 396,275,922.12 and 156,777,755.60

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Solution

The fourth proportional to 287,157,951.44, 396,275,922.12 and 156,777,755.60 is: 216,352,183.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,157,951.44 : 396,275,922.12 = 156,777,755.60 : x
  2. Step 2: Convert to fraction form
    287,157,951.44/396,275,922.12 = 156,777,755.60/x
  3. Step 3: Cross multiply
    287,157,951.44x = 396,275,922.12 × 156,777,755.60
  4. Step 4: Simplify right side
    287,157,951.44x = 62,127,249,668,293,992
  5. Step 5: Solve for x
    x = 62,127,249,668,293,992/287,157,951.44
  6. Step 6: Final answer
    x = 216,352,183.03

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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.