Home / 12,984,792-20,185,979

Finding the Third Proportional to 12,984,792 and 20,185,979

Calculator

Solution

The third proportional to 12,984,792 and 20,185,979 is: 31,380,845.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,984,792 : 20,185,979 = 20,185,979 : x
  2. Step 2: Convert to fraction form
    12,984,792/20,185,979 = 20,185,979/x
  3. Step 3: Cross multiply
    12,984,792x = 20,185,979 × 20,185,979
  4. Step 4: Simplify right side
    12,984,792x = 407,473,748,188,441
  5. Step 5: Solve for x
    x = 407,473,748,188,441/12,984,792
  6. Step 6: Final answer
    x = 31,380,845.24

Related Problems

Find third proportional to 6,492,396 and 10,092,989.50
Half scale
Find third proportional to 25,969,584 and 40,371,958
Double scale
Find third proportional to 12,984,794 and 20,185,982
Similar ratio
Find third proportional to 19,477,188 and 30,278,968.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.