Home / 6,921,320-15,145,878

Finding the Third Proportional to 6,921,320 and 15,145,878

Calculator

Solution

The third proportional to 6,921,320 and 15,145,878 is: 33,143,622.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,921,320 : 15,145,878 = 15,145,878 : x
  2. Step 2: Convert to fraction form
    6,921,320/15,145,878 = 15,145,878/x
  3. Step 3: Cross multiply
    6,921,320x = 15,145,878 × 15,145,878
  4. Step 4: Simplify right side
    6,921,320x = 229,397,620,390,884
  5. Step 5: Solve for x
    x = 229,397,620,390,884/6,921,320
  6. Step 6: Final answer
    x = 33,143,622.95

Related Problems

Find third proportional to 3,460,660 and 7,572,939
Half scale
Find third proportional to 13,842,640 and 30,291,756
Double scale
Find third proportional to 6,921,322 and 15,145,882
Similar ratio
Find third proportional to 10,381,980 and 22,718,817
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.