Home / 511,275,287.20-766,912,930.80-166,240,170.40

Finding the Fourth Proportional to 511,275,287.20, 766,912,930.80 and 166,240,170.40

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Solution

The fourth proportional to 511,275,287.20, 766,912,930.80 and 166,240,170.40 is: 249,360,255.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,275,287.20 : 766,912,930.80 = 166,240,170.40 : x
  2. Step 2: Convert to fraction form
    511,275,287.20/766,912,930.80 = 166,240,170.40/x
  3. Step 3: Cross multiply
    511,275,287.20x = 766,912,930.80 × 166,240,170.40
  4. Step 4: Simplify right side
    511,275,287.20x = 127,491,736,298,155,408
  5. Step 5: Solve for x
    x = 127,491,736,298,155,408/511,275,287.20
  6. Step 6: Final answer
    x = 249,360,255.60

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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.