Home / 18,529,673.78-25,564,821-11,184,716.36

Finding the Fourth Proportional to 18,529,673.78, 25,564,821 and 11,184,716.36

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Solution

The fourth proportional to 18,529,673.78, 25,564,821 and 11,184,716.36 is: 15,431,209.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,529,673.78 : 25,564,821 = 11,184,716.36 : x
  2. Step 2: Convert to fraction form
    18,529,673.78/25,564,821 = 11,184,716.36/x
  3. Step 3: Cross multiply
    18,529,673.78x = 25,564,821 × 11,184,716.36
  4. Step 4: Simplify right side
    18,529,673.78x = 285,935,271,679,171.56
  5. Step 5: Solve for x
    x = 285,935,271,679,171.56/18,529,673.78
  6. Step 6: Final answer
    x = 15,431,209.16

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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.