Home / 257,933,113.90-386,395,786.05-155,392,557.10

Finding the Fourth Proportional to 257,933,113.90, 386,395,786.05 and 155,392,557.10

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Solution

The fourth proportional to 257,933,113.90, 386,395,786.05 and 155,392,557.10 is: 232,785,268.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,933,113.90 : 386,395,786.05 = 155,392,557.10 : x
  2. Step 2: Convert to fraction form
    257,933,113.90/386,395,786.05 = 155,392,557.10/x
  3. Step 3: Cross multiply
    257,933,113.90x = 386,395,786.05 × 155,392,557.10
  4. Step 4: Simplify right side
    257,933,113.90x = 60,043,029,246,974,008
  5. Step 5: Solve for x
    x = 60,043,029,246,974,008/257,933,113.90
  6. Step 6: Final answer
    x = 232,785,268.78

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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.