Home / 18,301,140-39,438,840

Finding the Third Proportional to 18,301,140 and 39,438,840

Calculator

Solution

The third proportional to 18,301,140 and 39,438,840 is: 84,990,448.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,301,140 : 39,438,840 = 39,438,840 : x
  2. Step 2: Convert to fraction form
    18,301,140/39,438,840 = 39,438,840/x
  3. Step 3: Cross multiply
    18,301,140x = 39,438,840 × 39,438,840
  4. Step 4: Simplify right side
    18,301,140x = 1,555,422,100,545,600
  5. Step 5: Solve for x
    x = 1,555,422,100,545,600/18,301,140
  6. Step 6: Final answer
    x = 84,990,448.71

Related Problems

Find third proportional to 9,150,570 and 19,719,420
Half scale
Find third proportional to 36,602,280 and 78,877,680
Double scale
Find third proportional to 18,301,142 and 39,438,844
Similar ratio
Find third proportional to 27,451,710 and 59,158,260
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.