Home / 13,022,180.98-17,970,939.72-7,142,049.28

Finding the Fourth Proportional to 13,022,180.98, 17,970,939.72 and 7,142,049.28

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Solution

The fourth proportional to 13,022,180.98, 17,970,939.72 and 7,142,049.28 is: 9,856,208.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,022,180.98 : 17,970,939.72 = 7,142,049.28 : x
  2. Step 2: Convert to fraction form
    13,022,180.98/17,970,939.72 = 7,142,049.28/x
  3. Step 3: Cross multiply
    13,022,180.98x = 17,970,939.72 × 7,142,049.28
  4. Step 4: Simplify right side
    13,022,180.98x = 128,349,337,088,149.39
  5. Step 5: Solve for x
    x = 128,349,337,088,149.39/13,022,180.98
  6. Step 6: Final answer
    x = 9,856,208.98

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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.