Home / 981,330,719.06-1,472,008,900.12-326,281,745.30

Finding the Fourth Proportional to 981,330,719.06, 1,472,008,900.12 and 326,281,745.30

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Solution

The fourth proportional to 981,330,719.06, 1,472,008,900.12 and 326,281,745.30 is: 489,426,880.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,330,719.06 : 1,472,008,900.12 = 326,281,745.30 : x
  2. Step 2: Convert to fraction form
    981,330,719.06/1,472,008,900.12 = 326,281,745.30/x
  3. Step 3: Cross multiply
    981,330,719.06x = 1,472,008,900.12 × 326,281,745.30
  4. Step 4: Simplify right side
    981,330,719.06x = 480,289,633,021,481,664
  5. Step 5: Solve for x
    x = 480,289,633,021,481,664/981,330,719.06
  6. Step 6: Final answer
    x = 489,426,880.96

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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.