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Finding the Fourth Proportional to 221,273,187.40, 331,909,781.10 and 221,273,187.40

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Solution

The fourth proportional to 221,273,187.40, 331,909,781.10 and 221,273,187.40 is: 331,909,781.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,273,187.40 : 331,909,781.10 = 221,273,187.40 : x
  2. Step 2: Convert to fraction form
    221,273,187.40/331,909,781.10 = 221,273,187.40/x
  3. Step 3: Cross multiply
    221,273,187.40x = 331,909,781.10 × 221,273,187.40
  4. Step 4: Simplify right side
    221,273,187.40x = 73,442,735,193,233,280
  5. Step 5: Solve for x
    x = 73,442,735,193,233,280/221,273,187.40
  6. Step 6: Final answer
    x = 331,909,781.10

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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.