Home / 415,314,578.40-622,971,867.60-172,945,989.60

Finding the Fourth Proportional to 415,314,578.40, 622,971,867.60 and 172,945,989.60

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Solution

The fourth proportional to 415,314,578.40, 622,971,867.60 and 172,945,989.60 is: 259,418,984.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,314,578.40 : 622,971,867.60 = 172,945,989.60 : x
  2. Step 2: Convert to fraction form
    415,314,578.40/622,971,867.60 = 172,945,989.60/x
  3. Step 3: Cross multiply
    415,314,578.40x = 622,971,867.60 × 172,945,989.60
  4. Step 4: Simplify right side
    415,314,578.40x = 107,740,486,135,042,176
  5. Step 5: Solve for x
    x = 107,740,486,135,042,176/415,314,578.40
  6. Step 6: Final answer
    x = 259,418,984.40

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1.5x scale

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.