Home / 66,725,688-143,689,780

Finding the Third Proportional to 66,725,688 and 143,689,780

Calculator

Solution

The third proportional to 66,725,688 and 143,689,780 is: 309,427,350.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,725,688 : 143,689,780 = 143,689,780 : x
  2. Step 2: Convert to fraction form
    66,725,688/143,689,780 = 143,689,780/x
  3. Step 3: Cross multiply
    66,725,688x = 143,689,780 × 143,689,780
  4. Step 4: Simplify right side
    66,725,688x = 20,646,752,876,448,400
  5. Step 5: Solve for x
    x = 20,646,752,876,448,400/66,725,688
  6. Step 6: Final answer
    x = 309,427,350.92

Related Problems

Find third proportional to 33,362,844 and 71,844,890
Half scale
Find third proportional to 133,451,376 and 287,379,560
Double scale
Find third proportional to 66,725,690 and 143,689,784
Similar ratio
Find third proportional to 100,088,532 and 215,534,670
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.