Home / 10,936,679.40-16,405,019.10-8,917,203.60

Finding the Fourth Proportional to 10,936,679.40, 16,405,019.10 and 8,917,203.60

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Solution

The fourth proportional to 10,936,679.40, 16,405,019.10 and 8,917,203.60 is: 13,375,805.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,936,679.40 : 16,405,019.10 = 8,917,203.60 : x
  2. Step 2: Convert to fraction form
    10,936,679.40/16,405,019.10 = 8,917,203.60/x
  3. Step 3: Cross multiply
    10,936,679.40x = 16,405,019.10 × 8,917,203.60
  4. Step 4: Simplify right side
    10,936,679.40x = 146,286,895,376,588.75
  5. Step 5: Solve for x
    x = 146,286,895,376,588.75/10,936,679.40
  6. Step 6: Final answer
    x = 13,375,805.40

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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.