Home / 9,720,987-21,272,790

Finding the Third Proportional to 9,720,987 and 21,272,790

Calculator

Solution

The third proportional to 9,720,987 and 21,272,790 is: 46,552,021.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,720,987 : 21,272,790 = 21,272,790 : x
  2. Step 2: Convert to fraction form
    9,720,987/21,272,790 = 21,272,790/x
  3. Step 3: Cross multiply
    9,720,987x = 21,272,790 × 21,272,790
  4. Step 4: Simplify right side
    9,720,987x = 452,531,594,384,100
  5. Step 5: Solve for x
    x = 452,531,594,384,100/9,720,987
  6. Step 6: Final answer
    x = 46,552,021.35

Related Problems

Find third proportional to 4,860,493.50 and 10,636,395
Half scale
Find third proportional to 19,441,974 and 42,545,580
Double scale
Find third proportional to 9,720,989 and 21,272,794
Similar ratio
Find third proportional to 14,581,480.50 and 31,909,185
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.