Home / 257,580,987.60-386,371,481.40-154,268,857.20

Finding the Fourth Proportional to 257,580,987.60, 386,371,481.40 and 154,268,857.20

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Solution

The fourth proportional to 257,580,987.60, 386,371,481.40 and 154,268,857.20 is: 231,403,285.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,580,987.60 : 386,371,481.40 = 154,268,857.20 : x
  2. Step 2: Convert to fraction form
    257,580,987.60/386,371,481.40 = 154,268,857.20/x
  3. Step 3: Cross multiply
    257,580,987.60x = 386,371,481.40 × 154,268,857.20
  4. Step 4: Simplify right side
    257,580,987.60x = 59,605,086,890,249,048
  5. Step 5: Solve for x
    x = 59,605,086,890,249,048/257,580,987.60
  6. Step 6: Final answer
    x = 231,403,285.80

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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.