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Finding the Fourth Proportional to 8,253,460.80, 12,381,940.80 and 2,495,721.60

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Solution

The fourth proportional to 8,253,460.80, 12,381,940.80 and 2,495,721.60 is: 3,744,111.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,253,460.80 : 12,381,940.80 = 2,495,721.60 : x
  2. Step 2: Convert to fraction form
    8,253,460.80/12,381,940.80 = 2,495,721.60/x
  3. Step 3: Cross multiply
    8,253,460.80x = 12,381,940.80 × 2,495,721.60
  4. Step 4: Simplify right side
    8,253,460.80x = 30,901,877,104,481.28
  5. Step 5: Solve for x
    x = 30,901,877,104,481.28/8,253,460.80
  6. Step 6: Final answer
    x = 3,744,111.45

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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.