Home / 911,420,046.54-1,257,758,527.86-493,734,058.20

Finding the Fourth Proportional to 911,420,046.54, 1,257,758,527.86 and 493,734,058.20

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Solution

The fourth proportional to 911,420,046.54, 1,257,758,527.86 and 493,734,058.20 is: 681,352,384.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,420,046.54 : 1,257,758,527.86 = 493,734,058.20 : x
  2. Step 2: Convert to fraction form
    911,420,046.54/1,257,758,527.86 = 493,734,058.20/x
  3. Step 3: Cross multiply
    911,420,046.54x = 1,257,758,527.86 × 493,734,058.20
  4. Step 4: Simplify right side
    911,420,046.54x = 620,998,222,195,975,552
  5. Step 5: Solve for x
    x = 620,998,222,195,975,552/911,420,046.54
  6. Step 6: Final answer
    x = 681,352,384.72

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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.