Home / 8,272,428-12,417,390

Finding the Third Proportional to 8,272,428 and 12,417,390

Calculator

Solution

The third proportional to 8,272,428 and 12,417,390 is: 18,639,216.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,272,428 : 12,417,390 = 12,417,390 : x
  2. Step 2: Convert to fraction form
    8,272,428/12,417,390 = 12,417,390/x
  3. Step 3: Cross multiply
    8,272,428x = 12,417,390 × 12,417,390
  4. Step 4: Simplify right side
    8,272,428x = 154,191,574,412,100
  5. Step 5: Solve for x
    x = 154,191,574,412,100/8,272,428
  6. Step 6: Final answer
    x = 18,639,216.25

Related Problems

Find third proportional to 4,136,214 and 6,208,695
Half scale
Find third proportional to 16,544,856 and 24,834,780
Double scale
Find third proportional to 8,272,430 and 12,417,393
Similar ratio
Find third proportional to 12,408,642 and 18,626,085
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.