Home / 5,121,039.79-7,066,825.76-2,798,012.72

Finding the Fourth Proportional to 5,121,039.79, 7,066,825.76 and 2,798,012.72

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Solution

The fourth proportional to 5,121,039.79, 7,066,825.76 and 2,798,012.72 is: 3,861,143.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,121,039.79 : 7,066,825.76 = 2,798,012.72 : x
  2. Step 2: Convert to fraction form
    5,121,039.79/7,066,825.76 = 2,798,012.72/x
  3. Step 3: Cross multiply
    5,121,039.79x = 7,066,825.76 × 2,798,012.72
  4. Step 4: Simplify right side
    5,121,039.79x = 19,773,068,351,414.87
  5. Step 5: Solve for x
    x = 19,773,068,351,414.87/5,121,039.79
  6. Step 6: Final answer
    x = 3,861,143.28

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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.