Home / 1,288,329,383.72-1,777,918,056.18-716,166,163.46

Finding the Fourth Proportional to 1,288,329,383.72, 1,777,918,056.18 and 716,166,163.46

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Solution

The fourth proportional to 1,288,329,383.72, 1,777,918,056.18 and 716,166,163.46 is: 988,322,372.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,329,383.72 : 1,777,918,056.18 = 716,166,163.46 : x
  2. Step 2: Convert to fraction form
    1,288,329,383.72/1,777,918,056.18 = 716,166,163.46/x
  3. Step 3: Cross multiply
    1,288,329,383.72x = 1,777,918,056.18 × 716,166,163.46
  4. Step 4: Simplify right side
    1,288,329,383.72x = 1,273,284,753,231,801,856
  5. Step 5: Solve for x
    x = 1,273,284,753,231,801,856/1,288,329,383.72
  6. Step 6: Final answer
    x = 988,322,372.62

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Double scale
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1.5x scale

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.