Home / 681,252,390.47-940,128,677.43-367,986,607.49

Finding the Fourth Proportional to 681,252,390.47, 940,128,677.43 and 367,986,607.49

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Solution

The fourth proportional to 681,252,390.47, 940,128,677.43 and 367,986,607.49 is: 507,821,722.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,252,390.47 : 940,128,677.43 = 367,986,607.49 : x
  2. Step 2: Convert to fraction form
    681,252,390.47/940,128,677.43 = 367,986,607.49/x
  3. Step 3: Cross multiply
    681,252,390.47x = 940,128,677.43 × 367,986,607.49
  4. Step 4: Simplify right side
    681,252,390.47x = 345,954,762,611,526,208
  5. Step 5: Solve for x
    x = 345,954,762,611,526,208/681,252,390.47
  6. Step 6: Final answer
    x = 507,821,722.83

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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.