Home / 725,309,715.51-1,000,930,796.98-412,061,118.28

Finding the Fourth Proportional to 725,309,715.51, 1,000,930,796.98 and 412,061,118.28

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Solution

The fourth proportional to 725,309,715.51, 1,000,930,796.98 and 412,061,118.28 is: 568,646,268.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,309,715.51 : 1,000,930,796.98 = 412,061,118.28 : x
  2. Step 2: Convert to fraction form
    725,309,715.51/1,000,930,796.98 = 412,061,118.28/x
  3. Step 3: Cross multiply
    725,309,715.51x = 1,000,930,796.98 × 412,061,118.28
  4. Step 4: Simplify right side
    725,309,715.51x = 412,444,663,524,470,400
  5. Step 5: Solve for x
    x = 412,444,663,524,470,400/725,309,715.51
  6. Step 6: Final answer
    x = 568,646,268.90

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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.