Home / 511,024,821.60-766,649,206.80-165,919,720.80

Finding the Fourth Proportional to 511,024,821.60, 766,649,206.80 and 165,919,720.80

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Solution

The fourth proportional to 511,024,821.60, 766,649,206.80 and 165,919,720.80 is: 248,915,937.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,024,821.60 : 766,649,206.80 = 165,919,720.80 : x
  2. Step 2: Convert to fraction form
    511,024,821.60/766,649,206.80 = 165,919,720.80/x
  3. Step 3: Cross multiply
    511,024,821.60x = 766,649,206.80 × 165,919,720.80
  4. Step 4: Simplify right side
    511,024,821.60x = 127,202,222,343,797,456
  5. Step 5: Solve for x
    x = 127,202,222,343,797,456/511,024,821.60
  6. Step 6: Final answer
    x = 248,915,937.09

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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.