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Finding the Fourth Proportional to 814,519,568.72, 1,124,599,361.28 and 762,480,866

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Solution

The fourth proportional to 814,519,568.72, 1,124,599,361.28 and 762,480,866 is: 1,052,750,023.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,519,568.72 : 1,124,599,361.28 = 762,480,866 : x
  2. Step 2: Convert to fraction form
    814,519,568.72/1,124,599,361.28 = 762,480,866/x
  3. Step 3: Cross multiply
    814,519,568.72x = 1,124,599,361.28 × 762,480,866
  4. Step 4: Simplify right side
    814,519,568.72x = 857,485,494,891,821,184
  5. Step 5: Solve for x
    x = 857,485,494,891,821,184/814,519,568.72
  6. Step 6: Final answer
    x = 1,052,750,023.23

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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.