Home / 7,678,870-11,520,199.50-2,287,499.48

Finding the Fourth Proportional to 7,678,870, 11,520,199.50 and 2,287,499.48

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Solution

The fourth proportional to 7,678,870, 11,520,199.50 and 2,287,499.48 is: 3,431,813.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,678,870 : 11,520,199.50 = 2,287,499.48 : x
  2. Step 2: Convert to fraction form
    7,678,870/11,520,199.50 = 2,287,499.48/x
  3. Step 3: Cross multiply
    7,678,870x = 11,520,199.50 × 2,287,499.48
  4. Step 4: Simplify right side
    7,678,870x = 26,352,450,365,746.26
  5. Step 5: Solve for x
    x = 26,352,450,365,746.26/7,678,870
  6. Step 6: Final answer
    x = 3,431,813.58

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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.