Home / 13,746,976.89-20,638,486.75-9,218,289.90

Finding the Fourth Proportional to 13,746,976.89, 20,638,486.75 and 9,218,289.90

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Solution

The fourth proportional to 13,746,976.89, 20,638,486.75 and 9,218,289.90 is: 13,839,519.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,746,976.89 : 20,638,486.75 = 9,218,289.90 : x
  2. Step 2: Convert to fraction form
    13,746,976.89/20,638,486.75 = 9,218,289.90/x
  3. Step 3: Cross multiply
    13,746,976.89x = 20,638,486.75 × 9,218,289.90
  4. Step 4: Simplify right side
    13,746,976.89x = 190,251,553,958,808.84
  5. Step 5: Solve for x
    x = 190,251,553,958,808.84/13,746,976.89
  6. Step 6: Final answer
    x = 13,839,519.44

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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.