Home / 13,579,219.52-18,738,949.21-7,467,648.02

Finding the Fourth Proportional to 13,579,219.52, 18,738,949.21 and 7,467,648.02

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Solution

The fourth proportional to 13,579,219.52, 18,738,949.21 and 7,467,648.02 is: 10,305,148.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,579,219.52 : 18,738,949.21 = 7,467,648.02 : x
  2. Step 2: Convert to fraction form
    13,579,219.52/18,738,949.21 = 7,467,648.02/x
  3. Step 3: Cross multiply
    13,579,219.52x = 18,738,949.21 × 7,467,648.02
  4. Step 4: Simplify right side
    13,579,219.52x = 139,935,876,964,937.06
  5. Step 5: Solve for x
    x = 139,935,876,964,937.06/13,579,219.52
  6. Step 6: Final answer
    x = 10,305,148.74

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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.