Home / 1,287,428,988-2,780,673,198

Finding the Third Proportional to 1,287,428,988 and 2,780,673,198

Calculator

Solution

The third proportional to 1,287,428,988 and 2,780,673,198 is: 6,005,879,552.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,428,988 : 2,780,673,198 = 2,780,673,198 : x
  2. Step 2: Convert to fraction form
    1,287,428,988/2,780,673,198 = 2,780,673,198/x
  3. Step 3: Cross multiply
    1,287,428,988x = 2,780,673,198 × 2,780,673,198
  4. Step 4: Simplify right side
    1,287,428,988x = 7,732,143,434,075,547,648
  5. Step 5: Solve for x
    x = 7,732,143,434,075,547,648/1,287,428,988
  6. Step 6: Final answer
    x = 6,005,879,552.31

Related Problems

Find third proportional to 643,714,494 and 1,390,336,599
Half scale
Find third proportional to 2,574,857,976 and 5,561,346,396
Double scale
Find third proportional to 1,287,428,990 and 2,780,673,202
Similar ratio
Find third proportional to 1,931,143,482 and 4,171,009,797
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.