Home / 257,933,112.90-386,395,784.55-155,392,556.10

Finding the Fourth Proportional to 257,933,112.90, 386,395,784.55 and 155,392,556.10

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Solution

The fourth proportional to 257,933,112.90, 386,395,784.55 and 155,392,556.10 is: 232,785,267.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,933,112.90 : 386,395,784.55 = 155,392,556.10 : x
  2. Step 2: Convert to fraction form
    257,933,112.90/386,395,784.55 = 155,392,556.10/x
  3. Step 3: Cross multiply
    257,933,112.90x = 386,395,784.55 × 155,392,556.10
  4. Step 4: Simplify right side
    257,933,112.90x = 60,043,028,627,489,384
  5. Step 5: Solve for x
    x = 60,043,028,627,489,384/257,933,112.90
  6. Step 6: Final answer
    x = 232,785,267.28

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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.