Home / 7,678,861.25-11,520,186.37-2,287,490.72

Finding the Fourth Proportional to 7,678,861.25, 11,520,186.37 and 2,287,490.72

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Solution

The fourth proportional to 7,678,861.25, 11,520,186.37 and 2,287,490.72 is: 3,431,800.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,678,861.25 : 11,520,186.37 = 2,287,490.72 : x
  2. Step 2: Convert to fraction form
    7,678,861.25/11,520,186.37 = 2,287,490.72/x
  3. Step 3: Cross multiply
    7,678,861.25x = 11,520,186.37 × 2,287,490.72
  4. Step 4: Simplify right side
    7,678,861.25x = 26,352,319,402,608.04
  5. Step 5: Solve for x
    x = 26,352,319,402,608.04/7,678,861.25
  6. Step 6: Final answer
    x = 3,431,800.44

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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.