Home / 5,172,783.53-7,138,661.42-2,880,944.21

Finding the Fourth Proportional to 5,172,783.53, 7,138,661.42 and 2,880,944.21

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Solution

The fourth proportional to 5,172,783.53, 7,138,661.42 and 2,880,944.21 is: 3,975,825.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,172,783.53 : 7,138,661.42 = 2,880,944.21 : x
  2. Step 2: Convert to fraction form
    5,172,783.53/7,138,661.42 = 2,880,944.21/x
  3. Step 3: Cross multiply
    5,172,783.53x = 7,138,661.42 × 2,880,944.21
  4. Step 4: Simplify right side
    5,172,783.53x = 20,566,085,310,148.39
  5. Step 5: Solve for x
    x = 20,566,085,310,148.39/5,172,783.53
  6. Step 6: Final answer
    x = 3,975,825.63

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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.