Home / 25,781,379.20-38,638,891.20-19,767,939.20

Finding the Fourth Proportional to 25,781,379.20, 38,638,891.20 and 19,767,939.20

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Solution

The fourth proportional to 25,781,379.20, 38,638,891.20 and 19,767,939.20 is: 29,626,469.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,781,379.20 : 38,638,891.20 = 19,767,939.20 : x
  2. Step 2: Convert to fraction form
    25,781,379.20/38,638,891.20 = 19,767,939.20/x
  3. Step 3: Cross multiply
    25,781,379.20x = 38,638,891.20 × 19,767,939.20
  4. Step 4: Simplify right side
    25,781,379.20x = 763,811,251,997,015.12
  5. Step 5: Solve for x
    x = 763,811,251,997,015.12/25,781,379.20
  6. Step 6: Final answer
    x = 29,626,469.79

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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.