Home / 128,277,000-280,075,732

Finding the Third Proportional to 128,277,000 and 280,075,732

Calculator

Solution

The third proportional to 128,277,000 and 280,075,732 is: 611,508,030.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,277,000 : 280,075,732 = 280,075,732 : x
  2. Step 2: Convert to fraction form
    128,277,000/280,075,732 = 280,075,732/x
  3. Step 3: Cross multiply
    128,277,000x = 280,075,732 × 280,075,732
  4. Step 4: Simplify right side
    128,277,000x = 78,442,415,655,335,824
  5. Step 5: Solve for x
    x = 78,442,415,655,335,824/128,277,000
  6. Step 6: Final answer
    x = 611,508,030.71

Related Problems

Find third proportional to 64,138,500 and 140,037,866
Half scale
Find third proportional to 256,554,000 and 560,151,464
Double scale
Find third proportional to 128,277,002 and 280,075,736
Similar ratio
Find third proportional to 192,415,500 and 420,113,598
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.