Home / 31,638,429.90-43,661,377.35-18,586,238.94

Finding the Fourth Proportional to 31,638,429.90, 43,661,377.35 and 18,586,238.94

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Solution

The fourth proportional to 31,638,429.90, 43,661,377.35 and 18,586,238.94 is: 25,649,211.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,638,429.90 : 43,661,377.35 = 18,586,238.94 : x
  2. Step 2: Convert to fraction form
    31,638,429.90/43,661,377.35 = 18,586,238.94/x
  3. Step 3: Cross multiply
    31,638,429.90x = 43,661,377.35 × 18,586,238.94
  4. Step 4: Simplify right side
    31,638,429.90x = 811,500,791,876,604.12
  5. Step 5: Solve for x
    x = 811,500,791,876,604.12/31,638,429.90
  6. Step 6: Final answer
    x = 25,649,211.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.