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Finding the Fourth Proportional to 485,692,855.44, 728,590,317.52 and 158,193,870.80

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Solution

The fourth proportional to 485,692,855.44, 728,590,317.52 and 158,193,870.80 is: 237,307,428.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,692,855.44 : 728,590,317.52 = 158,193,870.80 : x
  2. Step 2: Convert to fraction form
    485,692,855.44/728,590,317.52 = 158,193,870.80/x
  3. Step 3: Cross multiply
    485,692,855.44x = 728,590,317.52 × 158,193,870.80
  4. Step 4: Simplify right side
    485,692,855.44x = 115,258,522,555,889,856
  5. Step 5: Solve for x
    x = 115,258,522,555,889,856/485,692,855.44
  6. Step 6: Final answer
    x = 237,307,428.48

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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.