Home / 7,143,319.38-9,857,958.75-3,880,133.13

Finding the Fourth Proportional to 7,143,319.38, 9,857,958.75 and 3,880,133.13

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Solution

The fourth proportional to 7,143,319.38, 9,857,958.75 and 3,880,133.13 is: 5,354,680.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,143,319.38 : 9,857,958.75 = 3,880,133.13 : x
  2. Step 2: Convert to fraction form
    7,143,319.38/9,857,958.75 = 3,880,133.13/x
  3. Step 3: Cross multiply
    7,143,319.38x = 9,857,958.75 × 3,880,133.13
  4. Step 4: Simplify right side
    7,143,319.38x = 38,250,192,340,048.38
  5. Step 5: Solve for x
    x = 38,250,192,340,048.38/7,143,319.38
  6. Step 6: Final answer
    x = 5,354,680.41

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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.