Home / 297,405,687-644,220,078

Finding the Third Proportional to 297,405,687 and 644,220,078

Calculator

Solution

The third proportional to 297,405,687 and 644,220,078 is: 1,395,465,947.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,405,687 : 644,220,078 = 644,220,078 : x
  2. Step 2: Convert to fraction form
    297,405,687/644,220,078 = 644,220,078/x
  3. Step 3: Cross multiply
    297,405,687x = 644,220,078 × 644,220,078
  4. Step 4: Simplify right side
    297,405,687x = 415,019,508,898,326,080
  5. Step 5: Solve for x
    x = 415,019,508,898,326,080/297,405,687
  6. Step 6: Final answer
    x = 1,395,465,947.83

Related Problems

Find third proportional to 148,702,843.50 and 322,110,039
Half scale
Find third proportional to 594,811,374 and 1,288,440,156
Double scale
Find third proportional to 297,405,689 and 644,220,082
Similar ratio
Find third proportional to 446,108,530.50 and 966,330,117
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.