Home / 869,251,791.60-1,303,429,789.80-323,712,514.80

Finding the Fourth Proportional to 869,251,791.60, 1,303,429,789.80 and 323,712,514.80

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Solution

The fourth proportional to 869,251,791.60, 1,303,429,789.80 and 323,712,514.80 is: 485,401,973.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,251,791.60 : 1,303,429,789.80 = 323,712,514.80 : x
  2. Step 2: Convert to fraction form
    869,251,791.60/1,303,429,789.80 = 323,712,514.80/x
  3. Step 3: Cross multiply
    869,251,791.60x = 1,303,429,789.80 × 323,712,514.80
  4. Step 4: Simplify right side
    869,251,791.60x = 421,936,535,121,393,408
  5. Step 5: Solve for x
    x = 421,936,535,121,393,408/869,251,791.60
  6. Step 6: Final answer
    x = 485,401,973.51

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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.