Home / 681,252,103.85-940,128,281.73-367,986,320.46

Finding the Fourth Proportional to 681,252,103.85, 940,128,281.73 and 367,986,320.46

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Solution

The fourth proportional to 681,252,103.85, 940,128,281.73 and 367,986,320.46 is: 507,821,326.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,252,103.85 : 940,128,281.73 = 367,986,320.46 : x
  2. Step 2: Convert to fraction form
    681,252,103.85/940,128,281.73 = 367,986,320.46/x
  3. Step 3: Cross multiply
    681,252,103.85x = 940,128,281.73 × 367,986,320.46
  4. Step 4: Simplify right side
    681,252,103.85x = 345,954,347,154,204,928
  5. Step 5: Solve for x
    x = 345,954,347,154,204,928/681,252,103.85
  6. Step 6: Final answer
    x = 507,821,326.64

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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.