Home / 5,197,148.70-7,172,111.32-2,874,198.72

Finding the Fourth Proportional to 5,197,148.70, 7,172,111.32 and 2,874,198.72

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Solution

The fourth proportional to 5,197,148.70, 7,172,111.32 and 2,874,198.72 is: 3,966,419.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,197,148.70 : 7,172,111.32 = 2,874,198.72 : x
  2. Step 2: Convert to fraction form
    5,197,148.70/7,172,111.32 = 2,874,198.72/x
  3. Step 3: Cross multiply
    5,197,148.70x = 7,172,111.32 × 2,874,198.72
  4. Step 4: Simplify right side
    5,197,148.70x = 20,614,073,175,641.51
  5. Step 5: Solve for x
    x = 20,614,073,175,641.51/5,197,148.70
  6. Step 6: Final answer
    x = 3,966,419.74

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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.