Home / 5,321,540.40-7,983,347.40-2,126,122.80

Finding the Fourth Proportional to 5,321,540.40, 7,983,347.40 and 2,126,122.80

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Solution

The fourth proportional to 5,321,540.40, 7,983,347.40 and 2,126,122.80 is: 3,189,598.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,321,540.40 : 7,983,347.40 = 2,126,122.80 : x
  2. Step 2: Convert to fraction form
    5,321,540.40/7,983,347.40 = 2,126,122.80/x
  3. Step 3: Cross multiply
    5,321,540.40x = 7,983,347.40 × 2,126,122.80
  4. Step 4: Simplify right side
    5,321,540.40x = 16,973,576,927,460.72
  5. Step 5: Solve for x
    x = 16,973,576,927,460.72/5,321,540.40
  6. Step 6: Final answer
    x = 3,189,598.43

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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.