Home / 303,551,805.68-455,259,561.40-139,632,131.60

Finding the Fourth Proportional to 303,551,805.68, 455,259,561.40 and 139,632,131.60

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Solution

The fourth proportional to 303,551,805.68, 455,259,561.40 and 139,632,131.60 is: 209,416,850.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,551,805.68 : 455,259,561.40 = 139,632,131.60 : x
  2. Step 2: Convert to fraction form
    303,551,805.68/455,259,561.40 = 139,632,131.60/x
  3. Step 3: Cross multiply
    303,551,805.68x = 455,259,561.40 × 139,632,131.60
  4. Step 4: Simplify right side
    303,551,805.68x = 63,568,862,989,563,072
  5. Step 5: Solve for x
    x = 63,568,862,989,563,072/303,551,805.68
  6. Step 6: Final answer
    x = 209,416,850.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.