Home / 8,641,422-18,909,468

Finding the Third Proportional to 8,641,422 and 18,909,468

Calculator

Solution

The third proportional to 8,641,422 and 18,909,468 is: 41,378,372.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,641,422 : 18,909,468 = 18,909,468 : x
  2. Step 2: Convert to fraction form
    8,641,422/18,909,468 = 18,909,468/x
  3. Step 3: Cross multiply
    8,641,422x = 18,909,468 × 18,909,468
  4. Step 4: Simplify right side
    8,641,422x = 357,567,980,043,024
  5. Step 5: Solve for x
    x = 357,567,980,043,024/8,641,422
  6. Step 6: Final answer
    x = 41,378,372.68

Related Problems

Find third proportional to 4,320,711 and 9,454,734
Half scale
Find third proportional to 17,282,844 and 37,818,936
Double scale
Find third proportional to 8,641,424 and 18,909,472
Similar ratio
Find third proportional to 12,962,133 and 28,364,202
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.