Home / 725,309,708.61-1,000,930,787.48-412,061,111.38

Finding the Fourth Proportional to 725,309,708.61, 1,000,930,787.48 and 412,061,111.38

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Solution

The fourth proportional to 725,309,708.61, 1,000,930,787.48 and 412,061,111.38 is: 568,646,259.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,309,708.61 : 1,000,930,787.48 = 412,061,111.38 : x
  2. Step 2: Convert to fraction form
    725,309,708.61/1,000,930,787.48 = 412,061,111.38/x
  3. Step 3: Cross multiply
    725,309,708.61x = 1,000,930,787.48 × 412,061,111.38
  4. Step 4: Simplify right side
    725,309,708.61x = 412,444,652,703,467,392
  5. Step 5: Solve for x
    x = 412,444,652,703,467,392/725,309,708.61
  6. Step 6: Final answer
    x = 568,646,259.39

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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.