Home / 13,479,321.90-20,218,982.85-11,085,869.10

Finding the Fourth Proportional to 13,479,321.90, 20,218,982.85 and 11,085,869.10

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Solution

The fourth proportional to 13,479,321.90, 20,218,982.85 and 11,085,869.10 is: 16,628,803.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,479,321.90 : 20,218,982.85 = 11,085,869.10 : x
  2. Step 2: Convert to fraction form
    13,479,321.90/20,218,982.85 = 11,085,869.10/x
  3. Step 3: Cross multiply
    13,479,321.90x = 20,218,982.85 × 11,085,869.10
  4. Step 4: Simplify right side
    13,479,321.90x = 224,144,997,210,244.94
  5. Step 5: Solve for x
    x = 224,144,997,210,244.94/13,479,321.90
  6. Step 6: Final answer
    x = 16,628,803.65

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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.