Home / 782,350,775.85-1,173,526,163.78-770,257,540.65

Finding the Fourth Proportional to 782,350,775.85, 1,173,526,163.78 and 770,257,540.65

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Solution

The fourth proportional to 782,350,775.85, 1,173,526,163.78 and 770,257,540.65 is: 1,155,386,310.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,350,775.85 : 1,173,526,163.78 = 770,257,540.65 : x
  2. Step 2: Convert to fraction form
    782,350,775.85/1,173,526,163.78 = 770,257,540.65/x
  3. Step 3: Cross multiply
    782,350,775.85x = 1,173,526,163.78 × 770,257,540.65
  4. Step 4: Simplify right side
    782,350,775.85x = 903,917,376,797,760,640
  5. Step 5: Solve for x
    x = 903,917,376,797,760,640/782,350,775.85
  6. Step 6: Final answer
    x = 1,155,386,310.98

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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.