Home / 12,921,282-20,017,168

Finding the Third Proportional to 12,921,282 and 20,017,168

Calculator

Solution

The third proportional to 12,921,282 and 20,017,168 is: 31,009,849.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,921,282 : 20,017,168 = 20,017,168 : x
  2. Step 2: Convert to fraction form
    12,921,282/20,017,168 = 20,017,168/x
  3. Step 3: Cross multiply
    12,921,282x = 20,017,168 × 20,017,168
  4. Step 4: Simplify right side
    12,921,282x = 400,687,014,740,224
  5. Step 5: Solve for x
    x = 400,687,014,740,224/12,921,282
  6. Step 6: Final answer
    x = 31,009,849.85

Related Problems

Find third proportional to 6,460,641 and 10,008,584
Half scale
Find third proportional to 25,842,564 and 40,034,336
Double scale
Find third proportional to 12,921,284 and 20,017,171
Similar ratio
Find third proportional to 19,381,923 and 30,025,752
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.