Home / 78,429,265-172,336,900

Finding the Third Proportional to 78,429,265 and 172,336,900

Calculator

Solution

The third proportional to 78,429,265 and 172,336,900 is: 378,685,266.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,429,265 : 172,336,900 = 172,336,900 : x
  2. Step 2: Convert to fraction form
    78,429,265/172,336,900 = 172,336,900/x
  3. Step 3: Cross multiply
    78,429,265x = 172,336,900 × 172,336,900
  4. Step 4: Simplify right side
    78,429,265x = 29,700,007,101,610,000
  5. Step 5: Solve for x
    x = 29,700,007,101,610,000/78,429,265
  6. Step 6: Final answer
    x = 378,685,266.29

Related Problems

Find third proportional to 39,214,632.50 and 86,168,450
Half scale
Find third proportional to 156,858,530 and 344,673,800
Double scale
Find third proportional to 78,429,267 and 172,336,904
Similar ratio
Find third proportional to 117,643,897.50 and 258,505,350
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.