Home / 15,268,853.28-21,063,994.23-13,528,299.27

Finding the Fourth Proportional to 15,268,853.28, 21,063,994.23 and 13,528,299.27

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Solution

The fourth proportional to 15,268,853.28, 21,063,994.23 and 13,528,299.27 is: 18,662,830.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,268,853.28 : 21,063,994.23 = 13,528,299.27 : x
  2. Step 2: Convert to fraction form
    15,268,853.28/21,063,994.23 = 13,528,299.27/x
  3. Step 3: Cross multiply
    15,268,853.28x = 21,063,994.23 × 13,528,299.27
  4. Step 4: Simplify right side
    15,268,853.28x = 284,960,017,764,993.19
  5. Step 5: Solve for x
    x = 284,960,017,764,993.19/15,268,853.28
  6. Step 6: Final answer
    x = 18,662,830.31

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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.