Home / 7,678,871.25-11,520,201.41-2,287,500.72

Finding the Fourth Proportional to 7,678,871.25, 11,520,201.41 and 2,287,500.72

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Solution

The fourth proportional to 7,678,871.25, 11,520,201.41 and 2,287,500.72 is: 3,431,815.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,678,871.25 : 11,520,201.41 = 2,287,500.72 : x
  2. Step 2: Convert to fraction form
    7,678,871.25/11,520,201.41 = 2,287,500.72/x
  3. Step 3: Cross multiply
    7,678,871.25x = 11,520,201.41 × 2,287,500.72
  4. Step 4: Simplify right side
    7,678,871.25x = 26,352,469,008,482.51
  5. Step 5: Solve for x
    x = 26,352,469,008,482.51/7,678,871.25
  6. Step 6: Final answer
    x = 3,431,815.45

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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.