Home / 12,516,221.47-18,782,229.71-5,327,743.63

Finding the Fourth Proportional to 12,516,221.47, 18,782,229.71 and 5,327,743.63

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Solution

The fourth proportional to 12,516,221.47, 18,782,229.71 and 5,327,743.63 is: 7,994,977.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,516,221.47 : 18,782,229.71 = 5,327,743.63 : x
  2. Step 2: Convert to fraction form
    12,516,221.47/18,782,229.71 = 5,327,743.63/x
  3. Step 3: Cross multiply
    12,516,221.47x = 18,782,229.71 × 5,327,743.63
  4. Step 4: Simplify right side
    12,516,221.47x = 100,066,904,694,649.25
  5. Step 5: Solve for x
    x = 100,066,904,694,649.25/12,516,221.47
  6. Step 6: Final answer
    x = 7,994,977.15

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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.