Home / 331,858,814-478,021,629

Finding the Third Proportional to 331,858,814 and 478,021,629

Calculator

Solution

The third proportional to 331,858,814 and 478,021,629 is: 688,559,918.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,858,814 : 478,021,629 = 478,021,629 : x
  2. Step 2: Convert to fraction form
    331,858,814/478,021,629 = 478,021,629/x
  3. Step 3: Cross multiply
    331,858,814x = 478,021,629 × 478,021,629
  4. Step 4: Simplify right side
    331,858,814x = 228,504,677,791,813,632
  5. Step 5: Solve for x
    x = 228,504,677,791,813,632/331,858,814
  6. Step 6: Final answer
    x = 688,559,918.11

Related Problems

Find third proportional to 165,929,407 and 239,010,814.50
Half scale
Find third proportional to 663,717,628 and 956,043,258
Double scale
Find third proportional to 331,858,816 and 478,021,632
Similar ratio
Find third proportional to 497,788,221 and 717,032,443.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.