Home / 206,305,940-308,641,978

Finding the Third Proportional to 206,305,940 and 308,641,978

Calculator

Solution

The third proportional to 206,305,940 and 308,641,978 is: 461,740,803.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,305,940 : 308,641,978 = 308,641,978 : x
  2. Step 2: Convert to fraction form
    206,305,940/308,641,978 = 308,641,978/x
  3. Step 3: Cross multiply
    206,305,940x = 308,641,978 × 308,641,978
  4. Step 4: Simplify right side
    206,305,940x = 95,259,870,583,752,480
  5. Step 5: Solve for x
    x = 95,259,870,583,752,480/206,305,940
  6. Step 6: Final answer
    x = 461,740,803.89

Related Problems

Find third proportional to 103,152,970 and 154,320,989
Half scale
Find third proportional to 412,611,880 and 617,283,956
Double scale
Find third proportional to 206,305,942 and 308,641,981
Similar ratio
Find third proportional to 309,458,910 and 462,962,967
1.5x scale

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.