Home / 5,189,984.80-7,784,977.20-2,798,500.30

Finding the Fourth Proportional to 5,189,984.80, 7,784,977.20 and 2,798,500.30

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Solution

The fourth proportional to 5,189,984.80, 7,784,977.20 and 2,798,500.30 is: 4,197,750.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,189,984.80 : 7,784,977.20 = 2,798,500.30 : x
  2. Step 2: Convert to fraction form
    5,189,984.80/7,784,977.20 = 2,798,500.30/x
  3. Step 3: Cross multiply
    5,189,984.80x = 7,784,977.20 × 2,798,500.30
  4. Step 4: Simplify right side
    5,189,984.80x = 21,786,261,029,693.16
  5. Step 5: Solve for x
    x = 21,786,261,029,693.16/5,189,984.80
  6. Step 6: Final answer
    x = 4,197,750.45

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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.