Home / 287,711,388.24-396,776,773.08-188,556,010.92

Finding the Fourth Proportional to 287,711,388.24, 396,776,773.08 and 188,556,010.92

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Solution

The fourth proportional to 287,711,388.24, 396,776,773.08 and 188,556,010.92 is: 260,033,660.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,711,388.24 : 396,776,773.08 = 188,556,010.92 : x
  2. Step 2: Convert to fraction form
    287,711,388.24/396,776,773.08 = 188,556,010.92/x
  3. Step 3: Cross multiply
    287,711,388.24x = 396,776,773.08 × 188,556,010.92
  4. Step 4: Simplify right side
    287,711,388.24x = 74,814,645,557,674,832
  5. Step 5: Solve for x
    x = 74,814,645,557,674,832/287,711,388.24
  6. Step 6: Final answer
    x = 260,033,660.87

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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.