Home / 126,094,765.52-188,868,433.08-77,424,885.20

Finding the Fourth Proportional to 126,094,765.52, 188,868,433.08 and 77,424,885.20

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Solution

The fourth proportional to 126,094,765.52, 188,868,433.08 and 77,424,885.20 is: 115,969,260.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,094,765.52 : 188,868,433.08 = 77,424,885.20 : x
  2. Step 2: Convert to fraction form
    126,094,765.52/188,868,433.08 = 77,424,885.20/x
  3. Step 3: Cross multiply
    126,094,765.52x = 188,868,433.08 × 77,424,885.20
  4. Step 4: Simplify right side
    126,094,765.52x = 14,623,116,749,122,884
  5. Step 5: Solve for x
    x = 14,623,116,749,122,884/126,094,765.52
  6. Step 6: Final answer
    x = 115,969,260.81

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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.