Home / 3,172,140.78-4,377,557.66-1,721,836.01

Finding the Fourth Proportional to 3,172,140.78, 4,377,557.66 and 1,721,836.01

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Solution

The fourth proportional to 3,172,140.78, 4,377,557.66 and 1,721,836.01 is: 2,376,135.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,172,140.78 : 4,377,557.66 = 1,721,836.01 : x
  2. Step 2: Convert to fraction form
    3,172,140.78/4,377,557.66 = 1,721,836.01/x
  3. Step 3: Cross multiply
    3,172,140.78x = 4,377,557.66 × 1,721,836.01
  4. Step 4: Simplify right side
    3,172,140.78x = 7,537,436,384,342.37
  5. Step 5: Solve for x
    x = 7,537,436,384,342.37/3,172,140.78
  6. Step 6: Final answer
    x = 2,376,135.52

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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.