Home / 125,420,663.16-188,132,885.81-43,542,141.52

Finding the Fourth Proportional to 125,420,663.16, 188,132,885.81 and 43,542,141.52

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Solution

The fourth proportional to 125,420,663.16, 188,132,885.81 and 43,542,141.52 is: 65,313,868.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,420,663.16 : 188,132,885.81 = 43,542,141.52 : x
  2. Step 2: Convert to fraction form
    125,420,663.16/188,132,885.81 = 43,542,141.52/x
  3. Step 3: Cross multiply
    125,420,663.16x = 188,132,885.81 × 43,542,141.52
  4. Step 4: Simplify right side
    125,420,663.16x = 8,191,708,738,505,021
  5. Step 5: Solve for x
    x = 8,191,708,738,505,021/125,420,663.16
  6. Step 6: Final answer
    x = 65,313,868.80

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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.