Home / 21,557,778.20-32,336,667.30-13,905,027.80

Finding the Fourth Proportional to 21,557,778.20, 32,336,667.30 and 13,905,027.80

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Solution

The fourth proportional to 21,557,778.20, 32,336,667.30 and 13,905,027.80 is: 20,857,541.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,557,778.20 : 32,336,667.30 = 13,905,027.80 : x
  2. Step 2: Convert to fraction form
    21,557,778.20/32,336,667.30 = 13,905,027.80/x
  3. Step 3: Cross multiply
    21,557,778.20x = 32,336,667.30 × 13,905,027.80
  4. Step 4: Simplify right side
    21,557,778.20x = 449,642,257,765,851
  5. Step 5: Solve for x
    x = 449,642,257,765,851/21,557,778.20
  6. Step 6: Final answer
    x = 20,857,541.70

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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.