Home / 15,321,654-21,144,028.36-8,446,382.64

Finding the Fourth Proportional to 15,321,654, 21,144,028.36 and 8,446,382.64

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Solution

The fourth proportional to 15,321,654, 21,144,028.36 and 8,446,382.64 is: 11,656,088.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,321,654 : 21,144,028.36 = 8,446,382.64 : x
  2. Step 2: Convert to fraction form
    15,321,654/21,144,028.36 = 8,446,382.64/x
  3. Step 3: Cross multiply
    15,321,654x = 21,144,028.36 × 8,446,382.64
  4. Step 4: Simplify right side
    15,321,654x = 178,590,554,079,571.69
  5. Step 5: Solve for x
    x = 178,590,554,079,571.69/15,321,654
  6. Step 6: Final answer
    x = 11,656,088.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.