Home / 354,231,882.12-489,016,976.04-220,312,964.19

Finding the Fourth Proportional to 354,231,882.12, 489,016,976.04 and 220,312,964.19

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Solution

The fourth proportional to 354,231,882.12, 489,016,976.04 and 220,312,964.19 is: 304,141,961.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,231,882.12 : 489,016,976.04 = 220,312,964.19 : x
  2. Step 2: Convert to fraction form
    354,231,882.12/489,016,976.04 = 220,312,964.19/x
  3. Step 3: Cross multiply
    354,231,882.12x = 489,016,976.04 × 220,312,964.19
  4. Step 4: Simplify right side
    354,231,882.12x = 107,736,779,530,602,608
  5. Step 5: Solve for x
    x = 107,736,779,530,602,608/354,231,882.12
  6. Step 6: Final answer
    x = 304,141,961.72

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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.