Home / 13,979,978.88-20,971,180.89-4,266,781.26

Finding the Fourth Proportional to 13,979,978.88, 20,971,180.89 and 4,266,781.26

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Solution

The fourth proportional to 13,979,978.88, 20,971,180.89 and 4,266,781.26 is: 6,400,541.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,979,978.88 : 20,971,180.89 = 4,266,781.26 : x
  2. Step 2: Convert to fraction form
    13,979,978.88/20,971,180.89 = 4,266,781.26/x
  3. Step 3: Cross multiply
    13,979,978.88x = 20,971,180.89 × 4,266,781.26
  4. Step 4: Simplify right side
    13,979,978.88x = 89,479,441,621,522.12
  5. Step 5: Solve for x
    x = 89,479,441,621,522.12/13,979,978.88
  6. Step 6: Final answer
    x = 6,400,541.97

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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.