Home / 6,420,738-13,372,920

Finding the Third Proportional to 6,420,738 and 13,372,920

Calculator

Solution

The third proportional to 6,420,738 and 13,372,920 is: 27,852,715.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,420,738 : 13,372,920 = 13,372,920 : x
  2. Step 2: Convert to fraction form
    6,420,738/13,372,920 = 13,372,920/x
  3. Step 3: Cross multiply
    6,420,738x = 13,372,920 × 13,372,920
  4. Step 4: Simplify right side
    6,420,738x = 178,834,989,326,400
  5. Step 5: Solve for x
    x = 178,834,989,326,400/6,420,738
  6. Step 6: Final answer
    x = 27,852,715.58

Related Problems

Find third proportional to 3,210,369 and 6,686,460
Half scale
Find third proportional to 12,841,476 and 26,745,840
Double scale
Find third proportional to 6,420,740 and 13,372,924
Similar ratio
Find third proportional to 9,631,107 and 20,059,380
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.