Home / 5,180,840.75-7,149,567.13-2,857,681.17

Finding the Fourth Proportional to 5,180,840.75, 7,149,567.13 and 2,857,681.17

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Solution

The fourth proportional to 5,180,840.75, 7,149,567.13 and 2,857,681.17 is: 3,943,603.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,180,840.75 : 7,149,567.13 = 2,857,681.17 : x
  2. Step 2: Convert to fraction form
    5,180,840.75/7,149,567.13 = 2,857,681.17/x
  3. Step 3: Cross multiply
    5,180,840.75x = 7,149,567.13 × 2,857,681.17
  4. Step 4: Simplify right side
    5,180,840.75x = 20,431,183,353,907.74
  5. Step 5: Solve for x
    x = 20,431,183,353,907.74/5,180,840.75
  6. Step 6: Final answer
    x = 3,943,603.81

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Double scale
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Similar ratio
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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.