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Finding the Fourth Proportional to 8,281,696.80, 12,410,881.20 and 6,578,752.80

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Solution

The fourth proportional to 8,281,696.80, 12,410,881.20 and 6,578,752.80 is: 9,858,863.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,281,696.80 : 12,410,881.20 = 6,578,752.80 : x
  2. Step 2: Convert to fraction form
    8,281,696.80/12,410,881.20 = 6,578,752.80/x
  3. Step 3: Cross multiply
    8,281,696.80x = 12,410,881.20 × 6,578,752.80
  4. Step 4: Simplify right side
    8,281,696.80x = 81,648,119,444,967.36
  5. Step 5: Solve for x
    x = 81,648,119,444,967.36/8,281,696.80
  6. Step 6: Final answer
    x = 9,858,863.64

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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.