Home / 5,131,914.88-7,082,265-2,840,076.40

Finding the Fourth Proportional to 5,131,914.88, 7,082,265 and 2,840,076.40

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Solution

The fourth proportional to 5,131,914.88, 7,082,265 and 2,840,076.40 is: 3,919,428.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,131,914.88 : 7,082,265 = 2,840,076.40 : x
  2. Step 2: Convert to fraction form
    5,131,914.88/7,082,265 = 2,840,076.40/x
  3. Step 3: Cross multiply
    5,131,914.88x = 7,082,265 × 2,840,076.40
  4. Step 4: Simplify right side
    5,131,914.88x = 20,114,173,685,046
  5. Step 5: Solve for x
    x = 20,114,173,685,046/5,131,914.88
  6. Step 6: Final answer
    x = 3,919,428.55

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1.5x scale

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.