Home / 309,139,539-666,705,272

Finding the Third Proportional to 309,139,539 and 666,705,272

Calculator

Solution

The third proportional to 309,139,539 and 666,705,272 is: 1,437,848,814.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,139,539 : 666,705,272 = 666,705,272 : x
  2. Step 2: Convert to fraction form
    309,139,539/666,705,272 = 666,705,272/x
  3. Step 3: Cross multiply
    309,139,539x = 666,705,272 × 666,705,272
  4. Step 4: Simplify right side
    309,139,539x = 444,495,919,712,593,984
  5. Step 5: Solve for x
    x = 444,495,919,712,593,984/309,139,539
  6. Step 6: Final answer
    x = 1,437,848,814.65

Related Problems

Find third proportional to 154,569,769.50 and 333,352,636
Half scale
Find third proportional to 618,279,078 and 1,333,410,544
Double scale
Find third proportional to 309,139,541 and 666,705,276
Similar ratio
Find third proportional to 463,709,308.50 and 1,000,057,908
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.