Home / 681,252,139.34-940,128,330.50-367,986,356.39

Finding the Fourth Proportional to 681,252,139.34, 940,128,330.50 and 367,986,356.39

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Solution

The fourth proportional to 681,252,139.34, 940,128,330.50 and 367,986,356.39 is: 507,821,376.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,252,139.34 : 940,128,330.50 = 367,986,356.39 : x
  2. Step 2: Convert to fraction form
    681,252,139.34/940,128,330.50 = 367,986,356.39/x
  3. Step 3: Cross multiply
    681,252,139.34x = 940,128,330.50 × 367,986,356.39
  4. Step 4: Simplify right side
    681,252,139.34x = 345,954,398,876,315,520
  5. Step 5: Solve for x
    x = 345,954,398,876,315,520/681,252,139.34
  6. Step 6: Final answer
    x = 507,821,376.11

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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.