Home / 79,498,126.81-109,633,398.55-51,590,997.38

Finding the Fourth Proportional to 79,498,126.81, 109,633,398.55 and 51,590,997.38

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Solution

The fourth proportional to 79,498,126.81, 109,633,398.55 and 51,590,997.38 is: 71,147,542.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,498,126.81 : 109,633,398.55 = 51,590,997.38 : x
  2. Step 2: Convert to fraction form
    79,498,126.81/109,633,398.55 = 51,590,997.38/x
  3. Step 3: Cross multiply
    79,498,126.81x = 109,633,398.55 × 51,590,997.38
  4. Step 4: Simplify right side
    79,498,126.81x = 5,656,096,377,026,934
  5. Step 5: Solve for x
    x = 5,656,096,377,026,934/79,498,126.81
  6. Step 6: Final answer
    x = 71,147,542.76

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1.5x scale

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.