Home / 20,181,625.53-27,840,956.73-13,209,233.40

Finding the Fourth Proportional to 20,181,625.53, 27,840,956.73 and 13,209,233.40

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Solution

The fourth proportional to 20,181,625.53, 27,840,956.73 and 13,209,233.40 is: 18,222,402.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,181,625.53 : 27,840,956.73 = 13,209,233.40 : x
  2. Step 2: Convert to fraction form
    20,181,625.53/27,840,956.73 = 13,209,233.40/x
  3. Step 3: Cross multiply
    20,181,625.53x = 27,840,956.73 × 13,209,233.40
  4. Step 4: Simplify right side
    20,181,625.53x = 367,757,695,525,870.81
  5. Step 5: Solve for x
    x = 367,757,695,525,870.81/20,181,625.53
  6. Step 6: Final answer
    x = 18,222,402.10

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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.