Home / 20,914,561.71-28,861,040.58-11,621,932.23

Finding the Fourth Proportional to 20,914,561.71, 28,861,040.58 and 11,621,932.23

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Solution

The fourth proportional to 20,914,561.71, 28,861,040.58 and 11,621,932.23 is: 16,037,680.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,914,561.71 : 28,861,040.58 = 11,621,932.23 : x
  2. Step 2: Convert to fraction form
    20,914,561.71/28,861,040.58 = 11,621,932.23/x
  3. Step 3: Cross multiply
    20,914,561.71x = 28,861,040.58 × 11,621,932.23
  4. Step 4: Simplify right side
    20,914,561.71x = 335,421,057,708,039.88
  5. Step 5: Solve for x
    x = 335,421,057,708,039.88/20,914,561.71
  6. Step 6: Final answer
    x = 16,037,680.46

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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.