Home / 5,172,813.82-7,138,703.28-2,880,974.53

Finding the Fourth Proportional to 5,172,813.82, 7,138,703.28 and 2,880,974.53

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Solution

The fourth proportional to 5,172,813.82, 7,138,703.28 and 2,880,974.53 is: 3,975,867.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,172,813.82 : 7,138,703.28 = 2,880,974.53 : x
  2. Step 2: Convert to fraction form
    5,172,813.82/7,138,703.28 = 2,880,974.53/x
  3. Step 3: Cross multiply
    5,172,813.82x = 7,138,703.28 × 2,880,974.53
  4. Step 4: Simplify right side
    5,172,813.82x = 20,566,422,326,907.46
  5. Step 5: Solve for x
    x = 20,566,422,326,907.46/5,172,813.82
  6. Step 6: Final answer
    x = 3,975,867.50

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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.