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Finding the Fourth Proportional to 411,355,242.72, 617,036,481 and 104,647,680

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Solution

The fourth proportional to 411,355,242.72, 617,036,481 and 104,647,680 is: 156,972,440.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,355,242.72 : 617,036,481 = 104,647,680 : x
  2. Step 2: Convert to fraction form
    411,355,242.72/617,036,481 = 104,647,680/x
  3. Step 3: Cross multiply
    411,355,242.72x = 617,036,481 × 104,647,680
  4. Step 4: Simplify right side
    411,355,242.72x = 64,571,436,212,014,080
  5. Step 5: Solve for x
    x = 64,571,436,212,014,080/411,355,242.72
  6. Step 6: Final answer
    x = 156,972,440.13

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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.