Home / 13,489,860.69-20,231,420.32-5,294,167.49

Finding the Fourth Proportional to 13,489,860.69, 20,231,420.32 and 5,294,167.49

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Solution

The fourth proportional to 13,489,860.69, 20,231,420.32 and 5,294,167.49 is: 7,939,928.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,489,860.69 : 20,231,420.32 = 5,294,167.49 : x
  2. Step 2: Convert to fraction form
    13,489,860.69/20,231,420.32 = 5,294,167.49/x
  3. Step 3: Cross multiply
    13,489,860.69x = 20,231,420.32 × 5,294,167.49
  4. Step 4: Simplify right side
    13,489,860.69x = 107,108,527,791,865.64
  5. Step 5: Solve for x
    x = 107,108,527,791,865.64/13,489,860.69
  6. Step 6: Final answer
    x = 7,939,928.38

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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.