Home / 13,986,378-20,980,755.27-3,888,999

Finding the Fourth Proportional to 13,986,378, 20,980,755.27 and 3,888,999

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Solution

The fourth proportional to 13,986,378, 20,980,755.27 and 3,888,999 is: 5,833,828.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,986,378 : 20,980,755.27 = 3,888,999 : x
  2. Step 2: Convert to fraction form
    13,986,378/20,980,755.27 = 3,888,999/x
  3. Step 3: Cross multiply
    13,986,378x = 20,980,755.27 × 3,888,999
  4. Step 4: Simplify right side
    13,986,378x = 81,594,136,264,274.73
  5. Step 5: Solve for x
    x = 81,594,136,264,274.73/13,986,378
  6. Step 6: Final answer
    x = 5,833,828.91

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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.