Home / 5,428,340.69-8,144,086.95-2,188,206.21

Finding the Fourth Proportional to 5,428,340.69, 8,144,086.95 and 2,188,206.21

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Solution

The fourth proportional to 5,428,340.69, 8,144,086.95 and 2,188,206.21 is: 3,282,944.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,428,340.69 : 8,144,086.95 = 2,188,206.21 : x
  2. Step 2: Convert to fraction form
    5,428,340.69/8,144,086.95 = 2,188,206.21/x
  3. Step 3: Cross multiply
    5,428,340.69x = 8,144,086.95 × 2,188,206.21
  4. Step 4: Simplify right side
    5,428,340.69x = 17,820,941,638,769.96
  5. Step 5: Solve for x
    x = 17,820,941,638,769.96/5,428,340.69
  6. Step 6: Final answer
    x = 3,282,944.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.