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Finding the Fourth Proportional to 12,482,706.60, 18,724,059.90 and 8,880,863.40

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Solution

The fourth proportional to 12,482,706.60, 18,724,059.90 and 8,880,863.40 is: 13,321,295.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,482,706.60 : 18,724,059.90 = 8,880,863.40 : x
  2. Step 2: Convert to fraction form
    12,482,706.60/18,724,059.90 = 8,880,863.40/x
  3. Step 3: Cross multiply
    12,482,706.60x = 18,724,059.90 × 8,880,863.40
  4. Step 4: Simplify right side
    12,482,706.60x = 166,285,818,265,317.66
  5. Step 5: Solve for x
    x = 166,285,818,265,317.66/12,482,706.60
  6. Step 6: Final answer
    x = 13,321,295.10

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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.