Home / 1,004,913,778.82-1,385,818,591.28-665,284,630.82

Finding the Fourth Proportional to 1,004,913,778.82, 1,385,818,591.28 and 665,284,630.82

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Solution

The fourth proportional to 1,004,913,778.82, 1,385,818,591.28 and 665,284,630.82 is: 917,455,635.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,004,913,778.82 : 1,385,818,591.28 = 665,284,630.82 : x
  2. Step 2: Convert to fraction form
    1,004,913,778.82/1,385,818,591.28 = 665,284,630.82/x
  3. Step 3: Cross multiply
    1,004,913,778.82x = 1,385,818,591.28 × 665,284,630.82
  4. Step 4: Simplify right side
    1,004,913,778.82x = 921,963,809,872,951,936
  5. Step 5: Solve for x
    x = 921,963,809,872,951,936/1,004,913,778.82
  6. Step 6: Final answer
    x = 917,455,635.81

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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.