Home / 8,518,454-18,474,172

Finding the Third Proportional to 8,518,454 and 18,474,172

Calculator

Solution

The third proportional to 8,518,454 and 18,474,172 is: 40,065,372.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,518,454 : 18,474,172 = 18,474,172 : x
  2. Step 2: Convert to fraction form
    8,518,454/18,474,172 = 18,474,172/x
  3. Step 3: Cross multiply
    8,518,454x = 18,474,172 × 18,474,172
  4. Step 4: Simplify right side
    8,518,454x = 341,295,031,085,584
  5. Step 5: Solve for x
    x = 341,295,031,085,584/8,518,454
  6. Step 6: Final answer
    x = 40,065,372.32

Related Problems

Find third proportional to 4,259,227 and 9,237,086
Half scale
Find third proportional to 17,036,908 and 36,948,344
Double scale
Find third proportional to 8,518,456 and 18,474,176
Similar ratio
Find third proportional to 12,777,681 and 27,711,258
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.