Home / 3,928,614.40-5,421,433.44-2,209,736.08

Finding the Fourth Proportional to 3,928,614.40, 5,421,433.44 and 2,209,736.08

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Solution

The fourth proportional to 3,928,614.40, 5,421,433.44 and 2,209,736.08 is: 3,049,405.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,928,614.40 : 5,421,433.44 = 2,209,736.08 : x
  2. Step 2: Convert to fraction form
    3,928,614.40/5,421,433.44 = 2,209,736.08/x
  3. Step 3: Cross multiply
    3,928,614.40x = 5,421,433.44 × 2,209,736.08
  4. Step 4: Simplify right side
    3,928,614.40x = 11,979,937,077,686.52
  5. Step 5: Solve for x
    x = 11,979,937,077,686.52/3,928,614.40
  6. Step 6: Final answer
    x = 3,049,405.17

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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.