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Finding the Fourth Proportional to 10,892,146.80, 16,302,790.80 and 8,482,947.60

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Solution

The fourth proportional to 10,892,146.80, 16,302,790.80 and 8,482,947.60 is: 12,696,828.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,892,146.80 : 16,302,790.80 = 8,482,947.60 : x
  2. Step 2: Convert to fraction form
    10,892,146.80/16,302,790.80 = 8,482,947.60/x
  3. Step 3: Cross multiply
    10,892,146.80x = 16,302,790.80 × 8,482,947.60
  4. Step 4: Simplify right side
    10,892,146.80x = 138,295,720,090,162.08
  5. Step 5: Solve for x
    x = 138,295,720,090,162.08/10,892,146.80
  6. Step 6: Final answer
    x = 12,696,828.52

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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.