Home / 9,989,439.08-13,785,425.86-5,405,760.44

Finding the Fourth Proportional to 9,989,439.08, 13,785,425.86 and 5,405,760.44

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Solution

The fourth proportional to 9,989,439.08, 13,785,425.86 and 5,405,760.44 is: 7,459,949.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,989,439.08 : 13,785,425.86 = 5,405,760.44 : x
  2. Step 2: Convert to fraction form
    9,989,439.08/13,785,425.86 = 5,405,760.44/x
  3. Step 3: Cross multiply
    9,989,439.08x = 13,785,425.86 × 5,405,760.44
  4. Step 4: Simplify right side
    9,989,439.08x = 74,520,709,762,540.98
  5. Step 5: Solve for x
    x = 74,520,709,762,540.98/9,989,439.08
  6. Step 6: Final answer
    x = 7,459,949.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.