Home / 217,871,255-470,172,721

Finding the Third Proportional to 217,871,255 and 470,172,721

Calculator

Solution

The third proportional to 217,871,255 and 470,172,721 is: 1,014,646,872.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,871,255 : 470,172,721 = 470,172,721 : x
  2. Step 2: Convert to fraction form
    217,871,255/470,172,721 = 470,172,721/x
  3. Step 3: Cross multiply
    217,871,255x = 470,172,721 × 470,172,721
  4. Step 4: Simplify right side
    217,871,255x = 221,062,387,572,543,840
  5. Step 5: Solve for x
    x = 221,062,387,572,543,840/217,871,255
  6. Step 6: Final answer
    x = 1,014,646,872.86

Related Problems

Find third proportional to 108,935,627.50 and 235,086,360.50
Half scale
Find third proportional to 435,742,510 and 940,345,442
Double scale
Find third proportional to 217,871,257 and 470,172,725
Similar ratio
Find third proportional to 326,806,882.50 and 705,259,081.50
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.