Home / 13,189,286.70-19,783,930.05-10,921,805.10

Finding the Fourth Proportional to 13,189,286.70, 19,783,930.05 and 10,921,805.10

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Solution

The fourth proportional to 13,189,286.70, 19,783,930.05 and 10,921,805.10 is: 16,382,707.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,189,286.70 : 19,783,930.05 = 10,921,805.10 : x
  2. Step 2: Convert to fraction form
    13,189,286.70/19,783,930.05 = 10,921,805.10/x
  3. Step 3: Cross multiply
    13,189,286.70x = 19,783,930.05 × 10,921,805.10
  4. Step 4: Simplify right side
    13,189,286.70x = 216,076,228,118,133.25
  5. Step 5: Solve for x
    x = 216,076,228,118,133.25/13,189,286.70
  6. Step 6: Final answer
    x = 16,382,707.65

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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.