Home / 77,643,824-121,789,707

Finding the Third Proportional to 77,643,824 and 121,789,707

Calculator

Solution

The third proportional to 77,643,824 and 121,789,707 is: 191,035,577.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,643,824 : 121,789,707 = 121,789,707 : x
  2. Step 2: Convert to fraction form
    77,643,824/121,789,707 = 121,789,707/x
  3. Step 3: Cross multiply
    77,643,824x = 121,789,707 × 121,789,707
  4. Step 4: Simplify right side
    77,643,824x = 14,832,732,731,145,848
  5. Step 5: Solve for x
    x = 14,832,732,731,145,848/77,643,824
  6. Step 6: Final answer
    x = 191,035,577.17

Related Problems

Find third proportional to 38,821,912 and 60,894,853.50
Half scale
Find third proportional to 155,287,648 and 243,579,414
Double scale
Find third proportional to 77,643,826 and 121,789,710
Similar ratio
Find third proportional to 116,465,736 and 182,684,560.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.