Home / 8,430,538-18,188,180

Finding the Third Proportional to 8,430,538 and 18,188,180

Calculator

Solution

The third proportional to 8,430,538 and 18,188,180 is: 39,239,475.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,430,538 : 18,188,180 = 18,188,180 : x
  2. Step 2: Convert to fraction form
    8,430,538/18,188,180 = 18,188,180/x
  3. Step 3: Cross multiply
    8,430,538x = 18,188,180 × 18,188,180
  4. Step 4: Simplify right side
    8,430,538x = 330,809,891,712,400
  5. Step 5: Solve for x
    x = 330,809,891,712,400/8,430,538
  6. Step 6: Final answer
    x = 39,239,475.79

Related Problems

Find third proportional to 4,215,269 and 9,094,090
Half scale
Find third proportional to 16,861,076 and 36,376,360
Double scale
Find third proportional to 8,430,540 and 18,188,184
Similar ratio
Find third proportional to 12,645,807 and 27,282,270
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.