Home / 12,311,719.36-18,467,541.78-8,653,387.84

Finding the Fourth Proportional to 12,311,719.36, 18,467,541.78 and 8,653,387.84

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Solution

The fourth proportional to 12,311,719.36, 18,467,541.78 and 8,653,387.84 is: 12,980,055.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,311,719.36 : 18,467,541.78 = 8,653,387.84 : x
  2. Step 2: Convert to fraction form
    12,311,719.36/18,467,541.78 = 8,653,387.84/x
  3. Step 3: Cross multiply
    12,311,719.36x = 18,467,541.78 × 8,653,387.84
  4. Step 4: Simplify right side
    12,311,719.36x = 159,806,801,473,743.97
  5. Step 5: Solve for x
    x = 159,806,801,473,743.97/12,311,719.36
  6. Step 6: Final answer
    x = 12,980,055.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.