Home / 13,590,710.76-18,755,183.52-7,479,139.26

Finding the Fourth Proportional to 13,590,710.76, 18,755,183.52 and 7,479,139.26

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Solution

The fourth proportional to 13,590,710.76, 18,755,183.52 and 7,479,139.26 is: 10,321,213.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,590,710.76 : 18,755,183.52 = 7,479,139.26 : x
  2. Step 2: Convert to fraction form
    13,590,710.76/18,755,183.52 = 7,479,139.26/x
  3. Step 3: Cross multiply
    13,590,710.76x = 18,755,183.52 × 7,479,139.26
  4. Step 4: Simplify right side
    13,590,710.76x = 140,272,629,392,936.98
  5. Step 5: Solve for x
    x = 140,272,629,392,936.98/13,590,710.76
  6. Step 6: Final answer
    x = 10,321,213.65

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Double scale
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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.