Home / 20,976,862.42-31,467,138.92-6,407,071.16

Finding the Fourth Proportional to 20,976,862.42, 31,467,138.92 and 6,407,071.16

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Solution

The fourth proportional to 20,976,862.42, 31,467,138.92 and 6,407,071.16 is: 9,611,170.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,976,862.42 : 31,467,138.92 = 6,407,071.16 : x
  2. Step 2: Convert to fraction form
    20,976,862.42/31,467,138.92 = 6,407,071.16/x
  3. Step 3: Cross multiply
    20,976,862.42x = 31,467,138.92 × 6,407,071.16
  4. Step 4: Simplify right side
    20,976,862.42x = 201,612,198,262,045.56
  5. Step 5: Solve for x
    x = 201,612,198,262,045.56/20,976,862.42
  6. Step 6: Final answer
    x = 9,611,170.36

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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.