Home / 911,352,703.14-1,257,672,768.30-493,664,984.64

Finding the Fourth Proportional to 911,352,703.14, 1,257,672,768.30 and 493,664,984.64

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Solution

The fourth proportional to 911,352,703.14, 1,257,672,768.30 and 493,664,984.64 is: 681,260,949.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,352,703.14 : 1,257,672,768.30 = 493,664,984.64 : x
  2. Step 2: Convert to fraction form
    911,352,703.14/1,257,672,768.30 = 493,664,984.64/x
  3. Step 3: Cross multiply
    911,352,703.14x = 1,257,672,768.30 × 493,664,984.64
  4. Step 4: Simplify right side
    911,352,703.14x = 620,869,007,844,965,760
  5. Step 5: Solve for x
    x = 620,869,007,844,965,760/911,352,703.14
  6. Step 6: Final answer
    x = 681,260,949.47

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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.