Home / 31,239,120-67,851,520

Finding the Third Proportional to 31,239,120 and 67,851,520

Calculator

Solution

The third proportional to 31,239,120 and 67,851,520 is: 147,373,830.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,239,120 : 67,851,520 = 67,851,520 : x
  2. Step 2: Convert to fraction form
    31,239,120/67,851,520 = 67,851,520/x
  3. Step 3: Cross multiply
    31,239,120x = 67,851,520 × 67,851,520
  4. Step 4: Simplify right side
    31,239,120x = 4,603,828,766,310,400
  5. Step 5: Solve for x
    x = 4,603,828,766,310,400/31,239,120
  6. Step 6: Final answer
    x = 147,373,830.19

Related Problems

Find third proportional to 15,619,560 and 33,925,760
Half scale
Find third proportional to 62,478,240 and 135,703,040
Double scale
Find third proportional to 31,239,122 and 67,851,524
Similar ratio
Find third proportional to 46,858,680 and 101,777,280
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.