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Finding the Fourth Proportional to 18,647,574.30, 27,971,361.45 and 5,871,995.10

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Solution

The fourth proportional to 18,647,574.30, 27,971,361.45 and 5,871,995.10 is: 8,807,992.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,647,574.30 : 27,971,361.45 = 5,871,995.10 : x
  2. Step 2: Convert to fraction form
    18,647,574.30/27,971,361.45 = 5,871,995.10/x
  3. Step 3: Cross multiply
    18,647,574.30x = 27,971,361.45 × 5,871,995.10
  4. Step 4: Simplify right side
    18,647,574.30x = 164,247,697,374,728.88
  5. Step 5: Solve for x
    x = 164,247,697,374,728.88/18,647,574.30
  6. Step 6: Final answer
    x = 8,807,992.65

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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.