Home / 7,172,687-15,478,865

Finding the Third Proportional to 7,172,687 and 15,478,865

Calculator

Solution

The third proportional to 7,172,687 and 15,478,865 is: 33,403,836.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,172,687 : 15,478,865 = 15,478,865 : x
  2. Step 2: Convert to fraction form
    7,172,687/15,478,865 = 15,478,865/x
  3. Step 3: Cross multiply
    7,172,687x = 15,478,865 × 15,478,865
  4. Step 4: Simplify right side
    7,172,687x = 239,595,261,688,225
  5. Step 5: Solve for x
    x = 239,595,261,688,225/7,172,687
  6. Step 6: Final answer
    x = 33,403,836.20

Related Problems

Find third proportional to 3,586,343.50 and 7,739,432.50
Half scale
Find third proportional to 14,345,374 and 30,957,730
Double scale
Find third proportional to 7,172,689 and 15,478,869
Similar ratio
Find third proportional to 10,759,030.50 and 23,218,297.50
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.