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Finding the Fourth Proportional to 8,229,692.70, 12,344,539.05 and 7,669,820.70

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Solution

The fourth proportional to 8,229,692.70, 12,344,539.05 and 7,669,820.70 is: 11,504,731.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,229,692.70 : 12,344,539.05 = 7,669,820.70 : x
  2. Step 2: Convert to fraction form
    8,229,692.70/12,344,539.05 = 7,669,820.70/x
  3. Step 3: Cross multiply
    8,229,692.70x = 12,344,539.05 × 7,669,820.70
  4. Step 4: Simplify right side
    8,229,692.70x = 94,680,401,137,648.34
  5. Step 5: Solve for x
    x = 94,680,401,137,648.34/8,229,692.70
  6. Step 6: Final answer
    x = 11,504,731.05

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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.