Home / 298,556,447.86-447,841,757.67-80,207,067.70

Finding the Fourth Proportional to 298,556,447.86, 447,841,757.67 and 80,207,067.70

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Solution

The fourth proportional to 298,556,447.86, 447,841,757.67 and 80,207,067.70 is: 120,312,505.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,556,447.86 : 447,841,757.67 = 80,207,067.70 : x
  2. Step 2: Convert to fraction form
    298,556,447.86/447,841,757.67 = 80,207,067.70/x
  3. Step 3: Cross multiply
    298,556,447.86x = 447,841,757.67 × 80,207,067.70
  4. Step 4: Simplify right side
    298,556,447.86x = 35,920,074,176,324,688
  5. Step 5: Solve for x
    x = 35,920,074,176,324,688/298,556,447.86
  6. Step 6: Final answer
    x = 120,312,505.17

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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.