Home / 279,662,178-423,379,974

Finding the Third Proportional to 279,662,178 and 423,379,974

Calculator

Solution

The third proportional to 279,662,178 and 423,379,974 is: 640,954,038.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,662,178 : 423,379,974 = 423,379,974 : x
  2. Step 2: Convert to fraction form
    279,662,178/423,379,974 = 423,379,974/x
  3. Step 3: Cross multiply
    279,662,178x = 423,379,974 × 423,379,974
  4. Step 4: Simplify right side
    279,662,178x = 179,250,602,384,240,672
  5. Step 5: Solve for x
    x = 179,250,602,384,240,672/279,662,178
  6. Step 6: Final answer
    x = 640,954,038.43

Related Problems

Find third proportional to 139,831,089 and 211,689,987
Half scale
Find third proportional to 559,324,356 and 846,759,948
Double scale
Find third proportional to 279,662,180 and 423,379,977
Similar ratio
Find third proportional to 419,493,267 and 635,069,961
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.