Home / 125,491,864.20-188,237,796.30-87,228,112.20

Finding the Fourth Proportional to 125,491,864.20, 188,237,796.30 and 87,228,112.20

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Solution

The fourth proportional to 125,491,864.20, 188,237,796.30 and 87,228,112.20 is: 130,842,168.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,491,864.20 : 188,237,796.30 = 87,228,112.20 : x
  2. Step 2: Convert to fraction form
    125,491,864.20/188,237,796.30 = 87,228,112.20/x
  3. Step 3: Cross multiply
    125,491,864.20x = 188,237,796.30 × 87,228,112.20
  4. Step 4: Simplify right side
    125,491,864.20x = 16,419,627,615,937,146
  5. Step 5: Solve for x
    x = 16,419,627,615,937,146/125,491,864.20
  6. Step 6: Final answer
    x = 130,842,168.30

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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.