Home / 30,612,318.66-42,244,995.96-16,861,282.79

Finding the Fourth Proportional to 30,612,318.66, 42,244,995.96 and 16,861,282.79

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Solution

The fourth proportional to 30,612,318.66, 42,244,995.96 and 16,861,282.79 is: 23,268,568.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,612,318.66 : 42,244,995.96 = 16,861,282.79 : x
  2. Step 2: Convert to fraction form
    30,612,318.66/42,244,995.96 = 16,861,282.79/x
  3. Step 3: Cross multiply
    30,612,318.66x = 42,244,995.96 × 16,861,282.79
  4. Step 4: Simplify right side
    30,612,318.66x = 712,304,823,132,742.62
  5. Step 5: Solve for x
    x = 712,304,823,132,742.62/30,612,318.66
  6. Step 6: Final answer
    x = 23,268,568.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.