Home / 278,856,897.22-384,795,559.29-161,358,789.70

Finding the Fourth Proportional to 278,856,897.22, 384,795,559.29 and 161,358,789.70

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Solution

The fourth proportional to 278,856,897.22, 384,795,559.29 and 161,358,789.70 is: 222,659,530.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,856,897.22 : 384,795,559.29 = 161,358,789.70 : x
  2. Step 2: Convert to fraction form
    278,856,897.22/384,795,559.29 = 161,358,789.70/x
  3. Step 3: Cross multiply
    278,856,897.22x = 384,795,559.29 × 161,358,789.70
  4. Step 4: Simplify right side
    278,856,897.22x = 62,090,145,728,968,992
  5. Step 5: Solve for x
    x = 62,090,145,728,968,992/278,856,897.22
  6. Step 6: Final answer
    x = 222,659,530.20

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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.