Home / 151,086,021.20-226,629,031.80-138,488,901.20

Finding the Fourth Proportional to 151,086,021.20, 226,629,031.80 and 138,488,901.20

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Solution

The fourth proportional to 151,086,021.20, 226,629,031.80 and 138,488,901.20 is: 207,733,351.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,086,021.20 : 226,629,031.80 = 138,488,901.20 : x
  2. Step 2: Convert to fraction form
    151,086,021.20/226,629,031.80 = 138,488,901.20/x
  3. Step 3: Cross multiply
    151,086,021.20x = 226,629,031.80 × 138,488,901.20
  4. Step 4: Simplify right side
    151,086,021.20x = 31,385,605,594,001,856
  5. Step 5: Solve for x
    x = 31,385,605,594,001,856/151,086,021.20
  6. Step 6: Final answer
    x = 207,733,351.80

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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.