Home / 1,288,329,391.26-1,777,918,066.56-716,166,171

Finding the Fourth Proportional to 1,288,329,391.26, 1,777,918,066.56 and 716,166,171

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Solution

The fourth proportional to 1,288,329,391.26, 1,777,918,066.56 and 716,166,171 is: 988,322,383.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,329,391.26 : 1,777,918,066.56 = 716,166,171 : x
  2. Step 2: Convert to fraction form
    1,288,329,391.26/1,777,918,066.56 = 716,166,171/x
  3. Step 3: Cross multiply
    1,288,329,391.26x = 1,777,918,066.56 × 716,166,171
  4. Step 4: Simplify right side
    1,288,329,391.26x = 1,273,284,774,079,998,208
  5. Step 5: Solve for x
    x = 1,273,284,774,079,998,208/1,288,329,391.26
  6. Step 6: Final answer
    x = 988,322,383.02

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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.