Home / 521,760,010.10-782,640,015.15-349,767,331.70

Finding the Fourth Proportional to 521,760,010.10, 782,640,015.15 and 349,767,331.70

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Solution

The fourth proportional to 521,760,010.10, 782,640,015.15 and 349,767,331.70 is: 524,650,997.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,760,010.10 : 782,640,015.15 = 349,767,331.70 : x
  2. Step 2: Convert to fraction form
    521,760,010.10/782,640,015.15 = 349,767,331.70/x
  3. Step 3: Cross multiply
    521,760,010.10x = 782,640,015.15 × 349,767,331.70
  4. Step 4: Simplify right side
    521,760,010.10x = 273,741,909,780,663,072
  5. Step 5: Solve for x
    x = 273,741,909,780,663,072/521,760,010.10
  6. Step 6: Final answer
    x = 524,650,997.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.