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Finding the Fourth Proportional to 8,371,930.40, 12,557,895.60 and 2,692,728.80

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Solution

The fourth proportional to 8,371,930.40, 12,557,895.60 and 2,692,728.80 is: 4,039,093.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,371,930.40 : 12,557,895.60 = 2,692,728.80 : x
  2. Step 2: Convert to fraction form
    8,371,930.40/12,557,895.60 = 2,692,728.80/x
  3. Step 3: Cross multiply
    8,371,930.40x = 12,557,895.60 × 2,692,728.80
  4. Step 4: Simplify right side
    8,371,930.40x = 33,815,007,149,513.28
  5. Step 5: Solve for x
    x = 33,815,007,149,513.28/8,371,930.40
  6. Step 6: Final answer
    x = 4,039,093.20

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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.