Home / 5,191,405.43-7,164,214.65-2,868,351.39

Finding the Fourth Proportional to 5,191,405.43, 7,164,214.65 and 2,868,351.39

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Solution

The fourth proportional to 5,191,405.43, 7,164,214.65 and 2,868,351.39 is: 3,958,366.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,191,405.43 : 7,164,214.65 = 2,868,351.39 : x
  2. Step 2: Convert to fraction form
    5,191,405.43/7,164,214.65 = 2,868,351.39/x
  3. Step 3: Cross multiply
    5,191,405.43x = 7,164,214.65 × 2,868,351.39
  4. Step 4: Simplify right side
    5,191,405.43x = 20,549,485,049,585.87
  5. Step 5: Solve for x
    x = 20,549,485,049,585.87/5,191,405.43
  6. Step 6: Final answer
    x = 3,958,366.45

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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.