Home / 681,252,155.88-940,128,353.55-367,986,372.47

Finding the Fourth Proportional to 681,252,155.88, 940,128,353.55 and 367,986,372.47

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Solution

The fourth proportional to 681,252,155.88, 940,128,353.55 and 367,986,372.47 is: 507,821,398.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,252,155.88 : 940,128,353.55 = 367,986,372.47 : x
  2. Step 2: Convert to fraction form
    681,252,155.88/940,128,353.55 = 367,986,372.47/x
  3. Step 3: Cross multiply
    681,252,155.88x = 940,128,353.55 × 367,986,372.47
  4. Step 4: Simplify right side
    681,252,155.88x = 345,954,422,477,882,944
  5. Step 5: Solve for x
    x = 345,954,422,477,882,944/681,252,155.88
  6. Step 6: Final answer
    x = 507,821,398.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.