Home / 511,292,138.83-766,970,493.83-216,132,218.60

Finding the Fourth Proportional to 511,292,138.83, 766,970,493.83 and 216,132,218.60

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Solution

The fourth proportional to 511,292,138.83, 766,970,493.83 and 216,132,218.60 is: 324,211,975.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,292,138.83 : 766,970,493.83 = 216,132,218.60 : x
  2. Step 2: Convert to fraction form
    511,292,138.83/766,970,493.83 = 216,132,218.60/x
  3. Step 3: Cross multiply
    511,292,138.83x = 766,970,493.83 × 216,132,218.60
  4. Step 4: Simplify right side
    511,292,138.83x = 165,767,034,428,110,496
  5. Step 5: Solve for x
    x = 165,767,034,428,110,496/511,292,138.83
  6. Step 6: Final answer
    x = 324,211,975.58

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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.