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Finding the Fourth Proportional to 149,494,401.90, 208,781,979.30 and 149,494,401.90

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Solution

The fourth proportional to 149,494,401.90, 208,781,979.30 and 149,494,401.90 is: 208,781,979.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,494,401.90 : 208,781,979.30 = 149,494,401.90 : x
  2. Step 2: Convert to fraction form
    149,494,401.90/208,781,979.30 = 149,494,401.90/x
  3. Step 3: Cross multiply
    149,494,401.90x = 208,781,979.30 × 149,494,401.90
  4. Step 4: Simplify right side
    149,494,401.90x = 31,211,737,122,951,684
  5. Step 5: Solve for x
    x = 31,211,737,122,951,684/149,494,401.90
  6. Step 6: Final answer
    x = 208,781,979.30

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.