Home / 15,338,997.72-21,168,259.86-8,463,922.68

Finding the Fourth Proportional to 15,338,997.72, 21,168,259.86 and 8,463,922.68

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Solution

The fourth proportional to 15,338,997.72, 21,168,259.86 and 8,463,922.68 is: 11,680,457.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,338,997.72 : 21,168,259.86 = 8,463,922.68 : x
  2. Step 2: Convert to fraction form
    15,338,997.72/21,168,259.86 = 8,463,922.68/x
  3. Step 3: Cross multiply
    15,338,997.72x = 21,168,259.86 × 8,463,922.68
  4. Step 4: Simplify right side
    15,338,997.72x = 179,166,514,725,187.62
  5. Step 5: Solve for x
    x = 179,166,514,725,187.62/15,338,997.72
  6. Step 6: Final answer
    x = 11,680,457.75

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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.