Home / 21,045,908.70-31,568,863.05-13,865,550.30

Finding the Fourth Proportional to 21,045,908.70, 31,568,863.05 and 13,865,550.30

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Solution

The fourth proportional to 21,045,908.70, 31,568,863.05 and 13,865,550.30 is: 20,798,325.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,045,908.70 : 31,568,863.05 = 13,865,550.30 : x
  2. Step 2: Convert to fraction form
    21,045,908.70/31,568,863.05 = 13,865,550.30/x
  3. Step 3: Cross multiply
    21,045,908.70x = 31,568,863.05 × 13,865,550.30
  4. Step 4: Simplify right side
    21,045,908.70x = 437,719,658,533,586.44
  5. Step 5: Solve for x
    x = 437,719,658,533,586.44/21,045,908.70
  6. Step 6: Final answer
    x = 20,798,325.45

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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.