Home / 18,691,528.56-25,787,973.72-15,247,816.56

Finding the Fourth Proportional to 18,691,528.56, 25,787,973.72 and 15,247,816.56

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Solution

The fourth proportional to 18,691,528.56, 25,787,973.72 and 15,247,816.56 is: 21,036,818.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,691,528.56 : 25,787,973.72 = 15,247,816.56 : x
  2. Step 2: Convert to fraction form
    18,691,528.56/25,787,973.72 = 15,247,816.56/x
  3. Step 3: Cross multiply
    18,691,528.56x = 25,787,973.72 × 15,247,816.56
  4. Step 4: Simplify right side
    18,691,528.56x = 393,210,292,736,660.81
  5. Step 5: Solve for x
    x = 393,210,292,736,660.81/18,691,528.56
  6. Step 6: Final answer
    x = 21,036,818.44

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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.