Home / 189,378,752-407,520,920

Finding the Third Proportional to 189,378,752 and 407,520,920

Calculator

Solution

The third proportional to 189,378,752 and 407,520,920 is: 876,937,346.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,378,752 : 407,520,920 = 407,520,920 : x
  2. Step 2: Convert to fraction form
    189,378,752/407,520,920 = 407,520,920/x
  3. Step 3: Cross multiply
    189,378,752x = 407,520,920 × 407,520,920
  4. Step 4: Simplify right side
    189,378,752x = 166,073,300,237,646,400
  5. Step 5: Solve for x
    x = 166,073,300,237,646,400/189,378,752
  6. Step 6: Final answer
    x = 876,937,346.37

Related Problems

Find third proportional to 94,689,376 and 203,760,460
Half scale
Find third proportional to 378,757,504 and 815,041,840
Double scale
Find third proportional to 189,378,754 and 407,520,924
Similar ratio
Find third proportional to 284,068,128 and 611,281,380
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.