Home / 287,890,872-621,655,898

Finding the Third Proportional to 287,890,872 and 621,655,898

Calculator

Solution

The third proportional to 287,890,872 and 621,655,898 is: 1,342,369,950.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,890,872 : 621,655,898 = 621,655,898 : x
  2. Step 2: Convert to fraction form
    287,890,872/621,655,898 = 621,655,898/x
  3. Step 3: Cross multiply
    287,890,872x = 621,655,898 × 621,655,898
  4. Step 4: Simplify right side
    287,890,872x = 386,456,055,518,186,432
  5. Step 5: Solve for x
    x = 386,456,055,518,186,432/287,890,872
  6. Step 6: Final answer
    x = 1,342,369,950.23

Related Problems

Find third proportional to 143,945,436 and 310,827,949
Half scale
Find third proportional to 575,781,744 and 1,243,311,796
Double scale
Find third proportional to 287,890,874 and 621,655,902
Similar ratio
Find third proportional to 431,836,308 and 932,483,847
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.