Home / 981,330,721.19-1,472,008,903.31-326,281,747.42

Finding the Fourth Proportional to 981,330,721.19, 1,472,008,903.31 and 326,281,747.42

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Solution

The fourth proportional to 981,330,721.19, 1,472,008,903.31 and 326,281,747.42 is: 489,426,884.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,330,721.19 : 1,472,008,903.31 = 326,281,747.42 : x
  2. Step 2: Convert to fraction form
    981,330,721.19/1,472,008,903.31 = 326,281,747.42/x
  3. Step 3: Cross multiply
    981,330,721.19x = 1,472,008,903.31 × 326,281,747.42
  4. Step 4: Simplify right side
    981,330,721.19x = 480,289,637,189,784,640
  5. Step 5: Solve for x
    x = 480,289,637,189,784,640/981,330,721.19
  6. Step 6: Final answer
    x = 489,426,884.15

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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.