Home / 20,073,885-30,045,681.90-10,839,019.68

Finding the Fourth Proportional to 20,073,885, 30,045,681.90 and 10,839,019.68

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Solution

The fourth proportional to 20,073,885, 30,045,681.90 and 10,839,019.68 is: 16,223,353.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,073,885 : 30,045,681.90 = 10,839,019.68 : x
  2. Step 2: Convert to fraction form
    20,073,885/30,045,681.90 = 10,839,019.68/x
  3. Step 3: Cross multiply
    20,073,885x = 30,045,681.90 × 10,839,019.68
  4. Step 4: Simplify right side
    20,073,885x = 325,665,737,413,119.75
  5. Step 5: Solve for x
    x = 325,665,737,413,119.75/20,073,885
  6. Step 6: Final answer
    x = 16,223,353.75

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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.