Home / 20,399,349.72-30,449,775.03-17,978,045.88

Finding the Fourth Proportional to 20,399,349.72, 30,449,775.03 and 17,978,045.88

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Solution

The fourth proportional to 20,399,349.72, 30,449,775.03 and 17,978,045.88 is: 26,835,534.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,399,349.72 : 30,449,775.03 = 17,978,045.88 : x
  2. Step 2: Convert to fraction form
    20,399,349.72/30,449,775.03 = 17,978,045.88/x
  3. Step 3: Cross multiply
    20,399,349.72x = 30,449,775.03 × 17,978,045.88
  4. Step 4: Simplify right side
    20,399,349.72x = 547,427,452,525,018.38
  5. Step 5: Solve for x
    x = 547,427,452,525,018.38/20,399,349.72
  6. Step 6: Final answer
    x = 26,835,534.47

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.