Home / 20,928,542.14-28,881,724.02-11,509,705.42

Finding the Fourth Proportional to 20,928,542.14, 28,881,724.02 and 11,509,705.42

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Solution

The fourth proportional to 20,928,542.14, 28,881,724.02 and 11,509,705.42 is: 15,883,578.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,928,542.14 : 28,881,724.02 = 11,509,705.42 : x
  2. Step 2: Convert to fraction form
    20,928,542.14/28,881,724.02 = 11,509,705.42/x
  3. Step 3: Cross multiply
    20,928,542.14x = 28,881,724.02 × 11,509,705.42
  4. Step 4: Simplify right side
    20,928,542.14x = 332,420,135,491,938.19
  5. Step 5: Solve for x
    x = 332,420,135,491,938.19/20,928,542.14
  6. Step 6: Final answer
    x = 15,883,578.19

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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.