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Finding the Fourth Proportional to 662,258,138.40, 993,387,207.60 and 202,136,520.60

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Solution

The fourth proportional to 662,258,138.40, 993,387,207.60 and 202,136,520.60 is: 303,204,780.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,258,138.40 : 993,387,207.60 = 202,136,520.60 : x
  2. Step 2: Convert to fraction form
    662,258,138.40/993,387,207.60 = 202,136,520.60/x
  3. Step 3: Cross multiply
    662,258,138.40x = 993,387,207.60 × 202,136,520.60
  4. Step 4: Simplify right side
    662,258,138.40x = 200,799,833,752,813,888
  5. Step 5: Solve for x
    x = 200,799,833,752,813,888/662,258,138.40
  6. Step 6: Final answer
    x = 303,204,780.90

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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.