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Finding the Fourth Proportional to 507,445,396.40, 760,530,365.40 and 248,102,188.40

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Solution

The fourth proportional to 507,445,396.40, 760,530,365.40 and 248,102,188.40 is: 371,841,481.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,445,396.40 : 760,530,365.40 = 248,102,188.40 : x
  2. Step 2: Convert to fraction form
    507,445,396.40/760,530,365.40 = 248,102,188.40/x
  3. Step 3: Cross multiply
    507,445,396.40x = 760,530,365.40 × 248,102,188.40
  4. Step 4: Simplify right side
    507,445,396.40x = 188,689,248,000,391,648
  5. Step 5: Solve for x
    x = 188,689,248,000,391,648/507,445,396.40
  6. Step 6: Final answer
    x = 371,841,481.54

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.