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Finding the Fourth Proportional to 16,648,640.40, 24,972,960.60 and 12,864,838.80

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Solution

The fourth proportional to 16,648,640.40, 24,972,960.60 and 12,864,838.80 is: 19,297,258.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,648,640.40 : 24,972,960.60 = 12,864,838.80 : x
  2. Step 2: Convert to fraction form
    16,648,640.40/24,972,960.60 = 12,864,838.80/x
  3. Step 3: Cross multiply
    16,648,640.40x = 24,972,960.60 × 12,864,838.80
  4. Step 4: Simplify right side
    16,648,640.40x = 321,273,112,477,751.31
  5. Step 5: Solve for x
    x = 321,273,112,477,751.31/16,648,640.40
  6. Step 6: Final answer
    x = 19,297,258.20

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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.