Home / 488,795,428.40-734,043,448.20-259,212,916.40

Finding the Fourth Proportional to 488,795,428.40, 734,043,448.20 and 259,212,916.40

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Solution

The fourth proportional to 488,795,428.40, 734,043,448.20 and 259,212,916.40 is: 389,270,299.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,795,428.40 : 734,043,448.20 = 259,212,916.40 : x
  2. Step 2: Convert to fraction form
    488,795,428.40/734,043,448.20 = 259,212,916.40/x
  3. Step 3: Cross multiply
    488,795,428.40x = 734,043,448.20 × 259,212,916.40
  4. Step 4: Simplify right side
    488,795,428.40x = 190,273,542,972,234,336
  5. Step 5: Solve for x
    x = 190,273,542,972,234,336/488,795,428.40
  6. Step 6: Final answer
    x = 389,270,299.84

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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.