Home / 21,311,340.13-31,975,063.19-12,797,611.57

Finding the Fourth Proportional to 21,311,340.13, 31,975,063.19 and 12,797,611.57

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Solution

The fourth proportional to 21,311,340.13, 31,975,063.19 and 12,797,611.57 is: 19,201,253.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,311,340.13 : 31,975,063.19 = 12,797,611.57 : x
  2. Step 2: Convert to fraction form
    21,311,340.13/31,975,063.19 = 12,797,611.57/x
  3. Step 3: Cross multiply
    21,311,340.13x = 31,975,063.19 × 12,797,611.57
  4. Step 4: Simplify right side
    21,311,340.13x = 409,204,438,407,961.69
  5. Step 5: Solve for x
    x = 409,204,438,407,961.69/21,311,340.13
  6. Step 6: Final answer
    x = 19,201,253.23

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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.