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Finding the Fourth Proportional to 8,766,019.70, 13,149,029.55 and 7,171,696.70

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Solution

The fourth proportional to 8,766,019.70, 13,149,029.55 and 7,171,696.70 is: 10,757,545.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,766,019.70 : 13,149,029.55 = 7,171,696.70 : x
  2. Step 2: Convert to fraction form
    8,766,019.70/13,149,029.55 = 7,171,696.70/x
  3. Step 3: Cross multiply
    8,766,019.70x = 13,149,029.55 × 7,171,696.70
  4. Step 4: Simplify right side
    8,766,019.70x = 94,300,851,831,937.50
  5. Step 5: Solve for x
    x = 94,300,851,831,937.50/8,766,019.70
  6. Step 6: Final answer
    x = 10,757,545.05

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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.