Home / 13,706,294.31-20,557,128.66-6,420,533.43

Finding the Fourth Proportional to 13,706,294.31, 20,557,128.66 and 6,420,533.43

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Solution

The fourth proportional to 13,706,294.31, 20,557,128.66 and 6,420,533.43 is: 9,629,716.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,706,294.31 : 20,557,128.66 = 6,420,533.43 : x
  2. Step 2: Convert to fraction form
    13,706,294.31/20,557,128.66 = 6,420,533.43/x
  3. Step 3: Cross multiply
    13,706,294.31x = 20,557,128.66 × 6,420,533.43
  4. Step 4: Simplify right side
    13,706,294.31x = 131,987,731,786,341.09
  5. Step 5: Solve for x
    x = 131,987,731,786,341.09/13,706,294.31
  6. Step 6: Final answer
    x = 9,629,716.74

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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.