Home / 21,167,995.20-31,719,333.60-15,751,233.60

Finding the Fourth Proportional to 21,167,995.20, 31,719,333.60 and 15,751,233.60

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Solution

The fourth proportional to 21,167,995.20, 31,719,333.60 and 15,751,233.60 is: 23,602,548.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,167,995.20 : 31,719,333.60 = 15,751,233.60 : x
  2. Step 2: Convert to fraction form
    21,167,995.20/31,719,333.60 = 15,751,233.60/x
  3. Step 3: Cross multiply
    21,167,995.20x = 31,719,333.60 × 15,751,233.60
  4. Step 4: Simplify right side
    21,167,995.20x = 499,618,633,169,929
  5. Step 5: Solve for x
    x = 499,618,633,169,929/21,167,995.20
  6. Step 6: Final answer
    x = 23,602,548.49

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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.