Home / 120,728,163-261,872,499

Finding the Third Proportional to 120,728,163 and 261,872,499

Calculator

Solution

The third proportional to 120,728,163 and 261,872,499 is: 568,029,894.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,728,163 : 261,872,499 = 261,872,499 : x
  2. Step 2: Convert to fraction form
    120,728,163/261,872,499 = 261,872,499/x
  3. Step 3: Cross multiply
    120,728,163x = 261,872,499 × 261,872,499
  4. Step 4: Simplify right side
    120,728,163x = 68,577,205,732,505,000
  5. Step 5: Solve for x
    x = 68,577,205,732,505,000/120,728,163
  6. Step 6: Final answer
    x = 568,029,894.83

Related Problems

Find third proportional to 60,364,081.50 and 130,936,249.50
Half scale
Find third proportional to 241,456,326 and 523,744,998
Double scale
Find third proportional to 120,728,165 and 261,872,503
Similar ratio
Find third proportional to 181,092,244.50 and 392,808,748.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.