Home / 13,481,346.91-18,607,719.00-8,321,743.70

Finding the Fourth Proportional to 13,481,346.91, 18,607,719.00 and 8,321,743.70

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Solution

The fourth proportional to 13,481,346.91, 18,607,719.00 and 8,321,743.70 is: 11,486,142.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,481,346.91 : 18,607,719.00 = 8,321,743.70 : x
  2. Step 2: Convert to fraction form
    13,481,346.91/18,607,719.00 = 8,321,743.70/x
  3. Step 3: Cross multiply
    13,481,346.91x = 18,607,719.00 × 8,321,743.70
  4. Step 4: Simplify right side
    13,481,346.91x = 154,848,668,437,346.12
  5. Step 5: Solve for x
    x = 154,848,668,437,346.12/13,481,346.91
  6. Step 6: Final answer
    x = 11,486,142.26

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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.