Home / 13,321,873.11-18,384,632.60-8,164,240.23

Finding the Fourth Proportional to 13,321,873.11, 18,384,632.60 and 8,164,240.23

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Solution

The fourth proportional to 13,321,873.11, 18,384,632.60 and 8,164,240.23 is: 11,266,925.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,321,873.11 : 18,384,632.60 = 8,164,240.23 : x
  2. Step 2: Convert to fraction form
    13,321,873.11/18,384,632.60 = 8,164,240.23/x
  3. Step 3: Cross multiply
    13,321,873.11x = 18,384,632.60 × 8,164,240.23
  4. Step 4: Simplify right side
    13,321,873.11x = 150,096,557,045,868.28
  5. Step 5: Solve for x
    x = 150,096,557,045,868.28/13,321,873.11
  6. Step 6: Final answer
    x = 11,266,925.89

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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.