Home / 31,378,060.80-47,040,134.64-10,905,120.48

Finding the Fourth Proportional to 31,378,060.80, 47,040,134.64 and 10,905,120.48

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Solution

The fourth proportional to 31,378,060.80, 47,040,134.64 and 10,905,120.48 is: 16,348,312.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,378,060.80 : 47,040,134.64 = 10,905,120.48 : x
  2. Step 2: Convert to fraction form
    31,378,060.80/47,040,134.64 = 10,905,120.48/x
  3. Step 3: Cross multiply
    31,378,060.80x = 47,040,134.64 × 10,905,120.48
  4. Step 4: Simplify right side
    31,378,060.80x = 512,978,335,644,621.44
  5. Step 5: Solve for x
    x = 512,978,335,644,621.44/31,378,060.80
  6. Step 6: Final answer
    x = 16,348,312.25

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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.