Home / 309,139,278-666,704,752

Finding the Third Proportional to 309,139,278 and 666,704,752

Calculator

Solution

The third proportional to 309,139,278 and 666,704,752 is: 1,437,847,785.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,139,278 : 666,704,752 = 666,704,752 : x
  2. Step 2: Convert to fraction form
    309,139,278/666,704,752 = 666,704,752/x
  3. Step 3: Cross multiply
    309,139,278x = 666,704,752 × 666,704,752
  4. Step 4: Simplify right side
    309,139,278x = 444,495,226,339,381,504
  5. Step 5: Solve for x
    x = 444,495,226,339,381,504/309,139,278
  6. Step 6: Final answer
    x = 1,437,847,785.68

Related Problems

Find third proportional to 154,569,639 and 333,352,376
Half scale
Find third proportional to 618,278,556 and 1,333,409,504
Double scale
Find third proportional to 309,139,280 and 666,704,756
Similar ratio
Find third proportional to 463,708,917 and 1,000,057,128
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.