Home / 981,330,721.70-1,472,008,904.06-326,281,747.92

Finding the Fourth Proportional to 981,330,721.70, 1,472,008,904.06 and 326,281,747.92

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Solution

The fourth proportional to 981,330,721.70, 1,472,008,904.06 and 326,281,747.92 is: 489,426,884.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,330,721.70 : 1,472,008,904.06 = 326,281,747.92 : x
  2. Step 2: Convert to fraction form
    981,330,721.70/1,472,008,904.06 = 326,281,747.92/x
  3. Step 3: Cross multiply
    981,330,721.70x = 1,472,008,904.06 × 326,281,747.92
  4. Step 4: Simplify right side
    981,330,721.70x = 480,289,638,168,868,992
  5. Step 5: Solve for x
    x = 480,289,638,168,868,992/981,330,721.70
  6. Step 6: Final answer
    x = 489,426,884.89

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1.5x scale

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.