Home / 18,517,528.94-27,663,667.13-11,987,406.08

Finding the Fourth Proportional to 18,517,528.94, 27,663,667.13 and 11,987,406.08

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Solution

The fourth proportional to 18,517,528.94, 27,663,667.13 and 11,987,406.08 is: 17,908,199.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,517,528.94 : 27,663,667.13 = 11,987,406.08 : x
  2. Step 2: Convert to fraction form
    18,517,528.94/27,663,667.13 = 11,987,406.08/x
  3. Step 3: Cross multiply
    18,517,528.94x = 27,663,667.13 × 11,987,406.08
  4. Step 4: Simplify right side
    18,517,528.94x = 331,615,611,351,002.75
  5. Step 5: Solve for x
    x = 331,615,611,351,002.75/18,517,528.94
  6. Step 6: Final answer
    x = 17,908,199.98

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.