Home / 21,384,780-30,897,330

Finding the Third Proportional to 21,384,780 and 30,897,330

Calculator

Solution

The third proportional to 21,384,780 and 30,897,330 is: 44,641,329.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,384,780 : 30,897,330 = 30,897,330 : x
  2. Step 2: Convert to fraction form
    21,384,780/30,897,330 = 30,897,330/x
  3. Step 3: Cross multiply
    21,384,780x = 30,897,330 × 30,897,330
  4. Step 4: Simplify right side
    21,384,780x = 954,645,001,128,900
  5. Step 5: Solve for x
    x = 954,645,001,128,900/21,384,780
  6. Step 6: Final answer
    x = 44,641,329.07

Related Problems

Find third proportional to 10,692,390 and 15,448,665
Half scale
Find third proportional to 42,769,560 and 61,794,660
Double scale
Find third proportional to 21,384,782 and 30,897,333
Similar ratio
Find third proportional to 32,077,170 and 46,345,995
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.