Home / 782,619,606.32-1,174,121,593.38-389,331,998.96

Finding the Fourth Proportional to 782,619,606.32, 1,174,121,593.38 and 389,331,998.96

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Solution

The fourth proportional to 782,619,606.32, 1,174,121,593.38 and 389,331,998.96 is: 584,093,604.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,619,606.32 : 1,174,121,593.38 = 389,331,998.96 : x
  2. Step 2: Convert to fraction form
    782,619,606.32/1,174,121,593.38 = 389,331,998.96/x
  3. Step 3: Cross multiply
    782,619,606.32x = 1,174,121,593.38 × 389,331,998.96
  4. Step 4: Simplify right side
    782,619,606.32x = 457,123,106,966,865,088
  5. Step 5: Solve for x
    x = 457,123,106,966,865,088/782,619,606.32
  6. Step 6: Final answer
    x = 584,093,604.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.