Home / 126,378,004.60-189,567,006.90-61,691,793.40

Finding the Fourth Proportional to 126,378,004.60, 189,567,006.90 and 61,691,793.40

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Solution

The fourth proportional to 126,378,004.60, 189,567,006.90 and 61,691,793.40 is: 92,537,690.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,378,004.60 : 189,567,006.90 = 61,691,793.40 : x
  2. Step 2: Convert to fraction form
    126,378,004.60/189,567,006.90 = 61,691,793.40/x
  3. Step 3: Cross multiply
    126,378,004.60x = 189,567,006.90 × 61,691,793.40
  4. Step 4: Simplify right side
    126,378,004.60x = 11,694,728,625,131,174
  5. Step 5: Solve for x
    x = 11,694,728,625,131,174/126,378,004.60
  6. Step 6: Final answer
    x = 92,537,690.10

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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.