Home / 139,804,926-209,707,409

Finding the Third Proportional to 139,804,926 and 209,707,409

Calculator

Solution

The third proportional to 139,804,926 and 209,707,409 is: 314,561,143.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,804,926 : 209,707,409 = 209,707,409 : x
  2. Step 2: Convert to fraction form
    139,804,926/209,707,409 = 209,707,409/x
  3. Step 3: Cross multiply
    139,804,926x = 209,707,409 × 209,707,409
  4. Step 4: Simplify right side
    139,804,926x = 43,977,197,389,493,280
  5. Step 5: Solve for x
    x = 43,977,197,389,493,280/139,804,926
  6. Step 6: Final answer
    x = 314,561,143.50

Related Problems

Find third proportional to 69,902,463 and 104,853,704.50
Half scale
Find third proportional to 279,609,852 and 419,414,818
Double scale
Find third proportional to 139,804,928 and 209,707,412
Similar ratio
Find third proportional to 209,707,389 and 314,561,113.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.