Home / 39,191,228.73-54,085,741.20-21,787,864.38

Finding the Fourth Proportional to 39,191,228.73, 54,085,741.20 and 21,787,864.38

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Solution

The fourth proportional to 39,191,228.73, 54,085,741.20 and 21,787,864.38 is: 30,068,278.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,191,228.73 : 54,085,741.20 = 21,787,864.38 : x
  2. Step 2: Convert to fraction form
    39,191,228.73/54,085,741.20 = 21,787,864.38/x
  3. Step 3: Cross multiply
    39,191,228.73x = 54,085,741.20 × 21,787,864.38
  4. Step 4: Simplify right side
    39,191,228.73x = 1,178,412,794,157,378.50
  5. Step 5: Solve for x
    x = 1,178,412,794,157,378.50/39,191,228.73
  6. Step 6: Final answer
    x = 30,068,278.86

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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.