Home / 981,330,758.15-1,472,008,958.91-326,281,784.58

Finding the Fourth Proportional to 981,330,758.15, 1,472,008,958.91 and 326,281,784.58

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Solution

The fourth proportional to 981,330,758.15, 1,472,008,958.91 and 326,281,784.58 is: 489,426,939.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,330,758.15 : 1,472,008,958.91 = 326,281,784.58 : x
  2. Step 2: Convert to fraction form
    981,330,758.15/1,472,008,958.91 = 326,281,784.58/x
  3. Step 3: Cross multiply
    981,330,758.15x = 1,472,008,958.91 × 326,281,784.58
  4. Step 4: Simplify right side
    981,330,758.15x = 480,289,710,030,902,720
  5. Step 5: Solve for x
    x = 480,289,710,030,902,720/981,330,758.15
  6. Step 6: Final answer
    x = 489,426,939.94

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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.