Home / 627,907,977.51-942,003,861.73-207,728,363.66

Finding the Fourth Proportional to 627,907,977.51, 942,003,861.73 and 207,728,363.66

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Solution

The fourth proportional to 627,907,977.51, 942,003,861.73 and 207,728,363.66 is: 311,639,488.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,907,977.51 : 942,003,861.73 = 207,728,363.66 : x
  2. Step 2: Convert to fraction form
    627,907,977.51/942,003,861.73 = 207,728,363.66/x
  3. Step 3: Cross multiply
    627,907,977.51x = 942,003,861.73 × 207,728,363.66
  4. Step 4: Simplify right side
    627,907,977.51x = 195,680,920,758,647,904
  5. Step 5: Solve for x
    x = 195,680,920,758,647,904/627,907,977.51
  6. Step 6: Final answer
    x = 311,639,488.22

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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.