Home / 981,330,865.92-1,472,009,120.16-326,281,892.16

Finding the Fourth Proportional to 981,330,865.92, 1,472,009,120.16 and 326,281,892.16

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Solution

The fourth proportional to 981,330,865.92, 1,472,009,120.16 and 326,281,892.16 is: 489,427,101.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,330,865.92 : 1,472,009,120.16 = 326,281,892.16 : x
  2. Step 2: Convert to fraction form
    981,330,865.92/1,472,009,120.16 = 326,281,892.16/x
  3. Step 3: Cross multiply
    981,330,865.92x = 1,472,009,120.16 × 326,281,892.16
  4. Step 4: Simplify right side
    981,330,865.92x = 480,289,921,002,581,696
  5. Step 5: Solve for x
    x = 480,289,921,002,581,696/981,330,865.92
  6. Step 6: Final answer
    x = 489,427,101.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.