Home / 13,475,145.60-20,212,718.40-3,890,836.80

Finding the Fourth Proportional to 13,475,145.60, 20,212,718.40 and 3,890,836.80

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Solution

The fourth proportional to 13,475,145.60, 20,212,718.40 and 3,890,836.80 is: 5,836,255.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,475,145.60 : 20,212,718.40 = 3,890,836.80 : x
  2. Step 2: Convert to fraction form
    13,475,145.60/20,212,718.40 = 3,890,836.80/x
  3. Step 3: Cross multiply
    13,475,145.60x = 20,212,718.40 × 3,890,836.80
  4. Step 4: Simplify right side
    13,475,145.60x = 78,644,388,578,757.11
  5. Step 5: Solve for x
    x = 78,644,388,578,757.11/13,475,145.60
  6. Step 6: Final answer
    x = 5,836,255.20

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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.