Home / 5,321,456.40-7,983,221.40-2,126,038.80

Finding the Fourth Proportional to 5,321,456.40, 7,983,221.40 and 2,126,038.80

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Solution

The fourth proportional to 5,321,456.40, 7,983,221.40 and 2,126,038.80 is: 3,189,472.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,321,456.40 : 7,983,221.40 = 2,126,038.80 : x
  2. Step 2: Convert to fraction form
    5,321,456.40/7,983,221.40 = 2,126,038.80/x
  3. Step 3: Cross multiply
    5,321,456.40x = 7,983,221.40 × 2,126,038.80
  4. Step 4: Simplify right side
    5,321,456.40x = 16,972,638,445,390.32
  5. Step 5: Solve for x
    x = 16,972,638,445,390.32/5,321,456.40
  6. Step 6: Final answer
    x = 3,189,472.42

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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.