Home / 3,178,972.38-4,398,533.87-2,771,922.45

Finding the Fourth Proportional to 3,178,972.38, 4,398,533.87 and 2,771,922.45

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Solution

The fourth proportional to 3,178,972.38, 4,398,533.87 and 2,771,922.45 is: 3,835,325.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,178,972.38 : 4,398,533.87 = 2,771,922.45 : x
  2. Step 2: Convert to fraction form
    3,178,972.38/4,398,533.87 = 2,771,922.45/x
  3. Step 3: Cross multiply
    3,178,972.38x = 4,398,533.87 × 2,771,922.45
  4. Step 4: Simplify right side
    3,178,972.38x = 12,192,394,767,478.77
  5. Step 5: Solve for x
    x = 12,192,394,767,478.77/3,178,972.38
  6. Step 6: Final answer
    x = 3,835,325.79

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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.