Home / 419,665,579.38-579,139,057.44-231,489,628.50

Finding the Fourth Proportional to 419,665,579.38, 579,139,057.44 and 231,489,628.50

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Solution

The fourth proportional to 419,665,579.38, 579,139,057.44 and 231,489,628.50 is: 319,455,995.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,665,579.38 : 579,139,057.44 = 231,489,628.50 : x
  2. Step 2: Convert to fraction form
    419,665,579.38/579,139,057.44 = 231,489,628.50/x
  3. Step 3: Cross multiply
    419,665,579.38x = 579,139,057.44 × 231,489,628.50
  4. Step 4: Simplify right side
    419,665,579.38x = 134,064,685,256,625,776
  5. Step 5: Solve for x
    x = 134,064,685,256,625,776/419,665,579.38
  6. Step 6: Final answer
    x = 319,455,995.07

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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.