Home / 20,473,981.49-28,241,118.23-15,568,449.36

Finding the Fourth Proportional to 20,473,981.49, 28,241,118.23 and 15,568,449.36

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Solution

The fourth proportional to 20,473,981.49, 28,241,118.23 and 15,568,449.36 is: 21,474,592.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,473,981.49 : 28,241,118.23 = 15,568,449.36 : x
  2. Step 2: Convert to fraction form
    20,473,981.49/28,241,118.23 = 15,568,449.36/x
  3. Step 3: Cross multiply
    20,473,981.49x = 28,241,118.23 × 15,568,449.36
  4. Step 4: Simplify right side
    20,473,981.49x = 439,670,418,955,685.56
  5. Step 5: Solve for x
    x = 439,670,418,955,685.56/20,473,981.49
  6. Step 6: Final answer
    x = 21,474,592.97

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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.