Home / 276,144,742-428,767,356

Finding the Third Proportional to 276,144,742 and 428,767,356

Calculator

Solution

The third proportional to 276,144,742 and 428,767,356 is: 665,743,060.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,144,742 : 428,767,356 = 428,767,356 : x
  2. Step 2: Convert to fraction form
    276,144,742/428,767,356 = 428,767,356/x
  3. Step 3: Cross multiply
    276,144,742x = 428,767,356 × 428,767,356
  4. Step 4: Simplify right side
    276,144,742x = 183,841,445,571,230,720
  5. Step 5: Solve for x
    x = 183,841,445,571,230,720/276,144,742
  6. Step 6: Final answer
    x = 665,743,060.11

Related Problems

Find third proportional to 138,072,371 and 214,383,678
Half scale
Find third proportional to 552,289,484 and 857,534,712
Double scale
Find third proportional to 276,144,744 and 428,767,359
Similar ratio
Find third proportional to 414,217,113 and 643,151,034
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.