Home / 55,663,972-121,207,890

Finding the Third Proportional to 55,663,972 and 121,207,890

Calculator

Solution

The third proportional to 55,663,972 and 121,207,890 is: 263,929,289.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,663,972 : 121,207,890 = 121,207,890 : x
  2. Step 2: Convert to fraction form
    55,663,972/121,207,890 = 121,207,890/x
  3. Step 3: Cross multiply
    55,663,972x = 121,207,890 × 121,207,890
  4. Step 4: Simplify right side
    55,663,972x = 14,691,352,598,252,100
  5. Step 5: Solve for x
    x = 14,691,352,598,252,100/55,663,972
  6. Step 6: Final answer
    x = 263,929,289.82

Related Problems

Find third proportional to 27,831,986 and 60,603,945
Half scale
Find third proportional to 111,327,944 and 242,415,780
Double scale
Find third proportional to 55,663,974 and 121,207,894
Similar ratio
Find third proportional to 83,495,958 and 181,811,835
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.