Home / 287,438,244.72-396,251,769.24-204,788,540.40

Finding the Fourth Proportional to 287,438,244.72, 396,251,769.24 and 204,788,540.40

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Solution

The fourth proportional to 287,438,244.72, 396,251,769.24 and 204,788,540.40 is: 282,313,933.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,438,244.72 : 396,251,769.24 = 204,788,540.40 : x
  2. Step 2: Convert to fraction form
    287,438,244.72/396,251,769.24 = 204,788,540.40/x
  3. Step 3: Cross multiply
    287,438,244.72x = 396,251,769.24 × 204,788,540.40
  4. Step 4: Simplify right side
    287,438,244.72x = 81,147,821,453,577,216
  5. Step 5: Solve for x
    x = 81,147,821,453,577,216/287,438,244.72
  6. Step 6: Final answer
    x = 282,313,933.32

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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.