Home / 3,889,578.46-5,368,159.28-2,170,809.69

Finding the Fourth Proportional to 3,889,578.46, 5,368,159.28 and 2,170,809.69

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Solution

The fourth proportional to 3,889,578.46, 5,368,159.28 and 2,170,809.69 is: 2,996,019.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,889,578.46 : 5,368,159.28 = 2,170,809.69 : x
  2. Step 2: Convert to fraction form
    3,889,578.46/5,368,159.28 = 2,170,809.69/x
  3. Step 3: Cross multiply
    3,889,578.46x = 5,368,159.28 × 2,170,809.69
  4. Step 4: Simplify right side
    3,889,578.46x = 11,653,252,182,487.42
  5. Step 5: Solve for x
    x = 11,653,252,182,487.42/3,889,578.46
  6. Step 6: Final answer
    x = 2,996,019.31

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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.