Home / 8,427,978-18,134,253

Finding the Third Proportional to 8,427,978 and 18,134,253

Calculator

Solution

The third proportional to 8,427,978 and 18,134,253 is: 39,018,983.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,427,978 : 18,134,253 = 18,134,253 : x
  2. Step 2: Convert to fraction form
    8,427,978/18,134,253 = 18,134,253/x
  3. Step 3: Cross multiply
    8,427,978x = 18,134,253 × 18,134,253
  4. Step 4: Simplify right side
    8,427,978x = 328,851,131,868,009
  5. Step 5: Solve for x
    x = 328,851,131,868,009/8,427,978
  6. Step 6: Final answer
    x = 39,018,983.19

Related Problems

Find third proportional to 4,213,989 and 9,067,126.50
Half scale
Find third proportional to 16,855,956 and 36,268,506
Double scale
Find third proportional to 8,427,980 and 18,134,257
Similar ratio
Find third proportional to 12,641,967 and 27,201,379.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.