Home / 981,330,721.57-1,472,008,903.88-326,281,747.80

Finding the Fourth Proportional to 981,330,721.57, 1,472,008,903.88 and 326,281,747.80

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Solution

The fourth proportional to 981,330,721.57, 1,472,008,903.88 and 326,281,747.80 is: 489,426,884.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,330,721.57 : 1,472,008,903.88 = 326,281,747.80 : x
  2. Step 2: Convert to fraction form
    981,330,721.57/1,472,008,903.88 = 326,281,747.80/x
  3. Step 3: Cross multiply
    981,330,721.57x = 1,472,008,903.88 × 326,281,747.80
  4. Step 4: Simplify right side
    981,330,721.57x = 480,289,637,935,128,640
  5. Step 5: Solve for x
    x = 480,289,637,935,128,640/981,330,721.57
  6. Step 6: Final answer
    x = 489,426,884.72

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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.