Home / 9,021,966-21,051,978

Finding the Third Proportional to 9,021,966 and 21,051,978

Calculator

Solution

The third proportional to 9,021,966 and 21,051,978 is: 49,122,971.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,021,966 : 21,051,978 = 21,051,978 : x
  2. Step 2: Convert to fraction form
    9,021,966/21,051,978 = 21,051,978/x
  3. Step 3: Cross multiply
    9,021,966x = 21,051,978 × 21,051,978
  4. Step 4: Simplify right side
    9,021,966x = 443,185,777,712,484
  5. Step 5: Solve for x
    x = 443,185,777,712,484/9,021,966
  6. Step 6: Final answer
    x = 49,122,971.39

Related Problems

Find third proportional to 4,510,983 and 10,525,989
Half scale
Find third proportional to 18,043,932 and 42,103,956
Double scale
Find third proportional to 9,021,968 and 21,051,983
Similar ratio
Find third proportional to 13,532,949 and 31,577,967
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.