Home / 20,202,965.40-30,304,448.10-19,086,939.30

Finding the Fourth Proportional to 20,202,965.40, 30,304,448.10 and 19,086,939.30

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Solution

The fourth proportional to 20,202,965.40, 30,304,448.10 and 19,086,939.30 is: 28,630,408.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,202,965.40 : 30,304,448.10 = 19,086,939.30 : x
  2. Step 2: Convert to fraction form
    20,202,965.40/30,304,448.10 = 19,086,939.30/x
  3. Step 3: Cross multiply
    20,202,965.40x = 30,304,448.10 × 19,086,939.30
  4. Step 4: Simplify right side
    20,202,965.40x = 578,419,161,404,700.38
  5. Step 5: Solve for x
    x = 578,419,161,404,700.38/20,202,965.40
  6. Step 6: Final answer
    x = 28,630,408.95

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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.