Home / 8,642,200-18,624,220

Finding the Third Proportional to 8,642,200 and 18,624,220

Calculator

Solution

The third proportional to 8,642,200 and 18,624,220 is: 40,135,795.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,642,200 : 18,624,220 = 18,624,220 : x
  2. Step 2: Convert to fraction form
    8,642,200/18,624,220 = 18,624,220/x
  3. Step 3: Cross multiply
    8,642,200x = 18,624,220 × 18,624,220
  4. Step 4: Simplify right side
    8,642,200x = 346,861,570,608,400
  5. Step 5: Solve for x
    x = 346,861,570,608,400/8,642,200
  6. Step 6: Final answer
    x = 40,135,795.35

Related Problems

Find third proportional to 4,321,100 and 9,312,110
Half scale
Find third proportional to 17,284,400 and 37,248,440
Double scale
Find third proportional to 8,642,202 and 18,624,224
Similar ratio
Find third proportional to 12,963,300 and 27,936,330
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.