Home / 1,008,351,618.72-1,512,530,240.40-386,757,385.44

Finding the Fourth Proportional to 1,008,351,618.72, 1,512,530,240.40 and 386,757,385.44

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Solution

The fourth proportional to 1,008,351,618.72, 1,512,530,240.40 and 386,757,385.44 is: 580,137,156.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,351,618.72 : 1,512,530,240.40 = 386,757,385.44 : x
  2. Step 2: Convert to fraction form
    1,008,351,618.72/1,512,530,240.40 = 386,757,385.44/x
  3. Step 3: Cross multiply
    1,008,351,618.72x = 1,512,530,240.40 × 386,757,385.44
  4. Step 4: Simplify right side
    1,008,351,618.72x = 584,982,241,176,038,656
  5. Step 5: Solve for x
    x = 584,982,241,176,038,656/1,008,351,618.72
  6. Step 6: Final answer
    x = 580,137,156.84

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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.