Home / 21,579,408.40-32,381,554.20-8,125,891.60

Finding the Fourth Proportional to 21,579,408.40, 32,381,554.20 and 8,125,891.60

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Solution

The fourth proportional to 21,579,408.40, 32,381,554.20 and 8,125,891.60 is: 12,193,522.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,579,408.40 : 32,381,554.20 = 8,125,891.60 : x
  2. Step 2: Convert to fraction form
    21,579,408.40/32,381,554.20 = 8,125,891.60/x
  3. Step 3: Cross multiply
    21,579,408.40x = 32,381,554.20 × 8,125,891.60
  4. Step 4: Simplify right side
    21,579,408.40x = 263,128,999,268,724.69
  5. Step 5: Solve for x
    x = 263,128,999,268,724.69/21,579,408.40
  6. Step 6: Final answer
    x = 12,193,522.38

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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.