Home / 1,275,906,836-1,760,752,142.24-689,195,977.76

Finding the Fourth Proportional to 1,275,906,836, 1,760,752,142.24 and 689,195,977.76

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Solution

The fourth proportional to 1,275,906,836, 1,760,752,142.24 and 689,195,977.76 is: 951,090,832.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,275,906,836 : 1,760,752,142.24 = 689,195,977.76 : x
  2. Step 2: Convert to fraction form
    1,275,906,836/1,760,752,142.24 = 689,195,977.76/x
  3. Step 3: Cross multiply
    1,275,906,836x = 1,760,752,142.24 × 689,195,977.76
  4. Step 4: Simplify right side
    1,275,906,836x = 1,213,503,294,264,111,360
  5. Step 5: Solve for x
    x = 1,213,503,294,264,111,360/1,275,906,836
  6. Step 6: Final answer
    x = 951,090,832.05

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