Home / 13,489,864.70-20,231,426.32-5,294,171.50

Finding the Fourth Proportional to 13,489,864.70, 20,231,426.32 and 5,294,171.50

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Solution

The fourth proportional to 13,489,864.70, 20,231,426.32 and 5,294,171.50 is: 7,939,934.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,489,864.70 : 20,231,426.32 = 5,294,171.50 : x
  2. Step 2: Convert to fraction form
    13,489,864.70/20,231,426.32 = 5,294,171.50/x
  3. Step 3: Cross multiply
    13,489,864.70x = 20,231,426.32 × 5,294,171.50
  4. Step 4: Simplify right side
    13,489,864.70x = 107,108,640,627,693.88
  5. Step 5: Solve for x
    x = 107,108,640,627,693.88/13,489,864.70
  6. Step 6: Final answer
    x = 7,939,934.39

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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.