Home / 6,439,040-13,406,080

Finding the Third Proportional to 6,439,040 and 13,406,080

Calculator

Solution

The third proportional to 6,439,040 and 13,406,080 is: 27,911,455.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,439,040 : 13,406,080 = 13,406,080 : x
  2. Step 2: Convert to fraction form
    6,439,040/13,406,080 = 13,406,080/x
  3. Step 3: Cross multiply
    6,439,040x = 13,406,080 × 13,406,080
  4. Step 4: Simplify right side
    6,439,040x = 179,722,980,966,400
  5. Step 5: Solve for x
    x = 179,722,980,966,400/6,439,040
  6. Step 6: Final answer
    x = 27,911,455.90

Related Problems

Find third proportional to 3,219,520 and 6,703,040
Half scale
Find third proportional to 12,878,080 and 26,812,160
Double scale
Find third proportional to 6,439,042 and 13,406,084
Similar ratio
Find third proportional to 9,658,560 and 20,109,120
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.