Home / 121,795,872-287,416,500

Finding the Third Proportional to 121,795,872 and 287,416,500

Calculator

Solution

The third proportional to 121,795,872 and 287,416,500 is: 678,251,595.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,795,872 : 287,416,500 = 287,416,500 : x
  2. Step 2: Convert to fraction form
    121,795,872/287,416,500 = 287,416,500/x
  3. Step 3: Cross multiply
    121,795,872x = 287,416,500 × 287,416,500
  4. Step 4: Simplify right side
    121,795,872x = 82,608,244,472,250,000
  5. Step 5: Solve for x
    x = 82,608,244,472,250,000/121,795,872
  6. Step 6: Final answer
    x = 678,251,595.20

Related Problems

Find third proportional to 60,897,936 and 143,708,250
Half scale
Find third proportional to 243,591,744 and 574,833,000
Double scale
Find third proportional to 121,795,874 and 287,416,505
Similar ratio
Find third proportional to 182,693,808 and 431,124,750
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.