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Finding the Fourth Proportional to 627,073,295.92, 865,416,241.92 and 344,865,420.40

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Solution

The fourth proportional to 627,073,295.92, 865,416,241.92 and 344,865,420.40 is: 475,944,579.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,073,295.92 : 865,416,241.92 = 344,865,420.40 : x
  2. Step 2: Convert to fraction form
    627,073,295.92/865,416,241.92 = 344,865,420.40/x
  3. Step 3: Cross multiply
    627,073,295.92x = 865,416,241.92 × 344,865,420.40
  4. Step 4: Simplify right side
    627,073,295.92x = 298,452,136,090,728,896
  5. Step 5: Solve for x
    x = 298,452,136,090,728,896/627,073,295.92
  6. Step 6: Final answer
    x = 475,944,579.42

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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.