Home / 8,642,385-18,879,336

Finding the Third Proportional to 8,642,385 and 18,879,336

Calculator

Solution

The third proportional to 8,642,385 and 18,879,336 is: 41,242,009.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,642,385 : 18,879,336 = 18,879,336 : x
  2. Step 2: Convert to fraction form
    8,642,385/18,879,336 = 18,879,336/x
  3. Step 3: Cross multiply
    8,642,385x = 18,879,336 × 18,879,336
  4. Step 4: Simplify right side
    8,642,385x = 356,429,327,800,896
  5. Step 5: Solve for x
    x = 356,429,327,800,896/8,642,385
  6. Step 6: Final answer
    x = 41,242,009.91

Related Problems

Find third proportional to 4,321,192.50 and 9,439,668
Half scale
Find third proportional to 17,284,770 and 37,758,672
Double scale
Find third proportional to 8,642,387 and 18,879,340
Similar ratio
Find third proportional to 12,963,577.50 and 28,319,004
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.