Home / 515,035,067.20-772,689,458.40-223,777,211.20

Finding the Fourth Proportional to 515,035,067.20, 772,689,458.40 and 223,777,211.20

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Solution

The fourth proportional to 515,035,067.20, 772,689,458.40 and 223,777,211.20 is: 335,725,279.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,035,067.20 : 772,689,458.40 = 223,777,211.20 : x
  2. Step 2: Convert to fraction form
    515,035,067.20/772,689,458.40 = 223,777,211.20/x
  3. Step 3: Cross multiply
    515,035,067.20x = 772,689,458.40 × 223,777,211.20
  4. Step 4: Simplify right side
    515,035,067.20x = 172,910,292,124,390,400
  5. Step 5: Solve for x
    x = 172,910,292,124,390,400/515,035,067.20
  6. Step 6: Final answer
    x = 335,725,279.96

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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.