Home / 298,659,221.82-448,149,446.55-287,788,497.75

Finding the Fourth Proportional to 298,659,221.82, 448,149,446.55 and 287,788,497.75

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Solution

The fourth proportional to 298,659,221.82, 448,149,446.55 and 287,788,497.75 is: 431,837,514.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,659,221.82 : 448,149,446.55 = 287,788,497.75 : x
  2. Step 2: Convert to fraction form
    298,659,221.82/448,149,446.55 = 287,788,497.75/x
  3. Step 3: Cross multiply
    298,659,221.82x = 448,149,446.55 × 287,788,497.75
  4. Step 4: Simplify right side
    298,659,221.82x = 128,972,255,990,118,416
  5. Step 5: Solve for x
    x = 128,972,255,990,118,416/298,659,221.82
  6. Step 6: Final answer
    x = 431,837,514.36

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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.