Home / 378,128,844-820,792,008

Finding the Third Proportional to 378,128,844 and 820,792,008

Calculator

Solution

The third proportional to 378,128,844 and 820,792,008 is: 1,781,666,569.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,128,844 : 820,792,008 = 820,792,008 : x
  2. Step 2: Convert to fraction form
    378,128,844/820,792,008 = 820,792,008/x
  3. Step 3: Cross multiply
    378,128,844x = 820,792,008 × 820,792,008
  4. Step 4: Simplify right side
    378,128,844x = 673,699,520,396,672,000
  5. Step 5: Solve for x
    x = 673,699,520,396,672,000/378,128,844
  6. Step 6: Final answer
    x = 1,781,666,569.71

Related Problems

Find third proportional to 189,064,422 and 410,396,004
Half scale
Find third proportional to 756,257,688 and 1,641,584,016
Double scale
Find third proportional to 378,128,846 and 820,792,012
Similar ratio
Find third proportional to 567,193,266 and 1,231,188,012
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.