Home / 297,378,976-644,173,135

Finding the Third Proportional to 297,378,976 and 644,173,135

Calculator

Solution

The third proportional to 297,378,976 and 644,173,135 is: 1,395,387,910.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,378,976 : 644,173,135 = 644,173,135 : x
  2. Step 2: Convert to fraction form
    297,378,976/644,173,135 = 644,173,135/x
  3. Step 3: Cross multiply
    297,378,976x = 644,173,135 × 644,173,135
  4. Step 4: Simplify right side
    297,378,976x = 414,959,027,855,728,256
  5. Step 5: Solve for x
    x = 414,959,027,855,728,256/297,378,976
  6. Step 6: Final answer
    x = 1,395,387,910.19

Related Problems

Find third proportional to 148,689,488 and 322,086,567.50
Half scale
Find third proportional to 594,757,952 and 1,288,346,270
Double scale
Find third proportional to 297,378,978 and 644,173,139
Similar ratio
Find third proportional to 446,068,464 and 966,259,702.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.