Home / 782,170,147.80-1,173,255,221.70-352,188,451.80

Finding the Fourth Proportional to 782,170,147.80, 1,173,255,221.70 and 352,188,451.80

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Solution

The fourth proportional to 782,170,147.80, 1,173,255,221.70 and 352,188,451.80 is: 528,282,677.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,170,147.80 : 1,173,255,221.70 = 352,188,451.80 : x
  2. Step 2: Convert to fraction form
    782,170,147.80/1,173,255,221.70 = 352,188,451.80/x
  3. Step 3: Cross multiply
    782,170,147.80x = 1,173,255,221.70 × 352,188,451.80
  4. Step 4: Simplify right side
    782,170,147.80x = 413,206,940,096,788,800
  5. Step 5: Solve for x
    x = 413,206,940,096,788,800/782,170,147.80
  6. Step 6: Final answer
    x = 528,282,677.70

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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.