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Finding the Fourth Proportional to 136,664,658.60, 205,014,969.90 and 50,463,616.20

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Solution

The fourth proportional to 136,664,658.60, 205,014,969.90 and 50,463,616.20 is: 75,702,064.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,664,658.60 : 205,014,969.90 = 50,463,616.20 : x
  2. Step 2: Convert to fraction form
    136,664,658.60/205,014,969.90 = 50,463,616.20/x
  3. Step 3: Cross multiply
    136,664,658.60x = 205,014,969.90 × 50,463,616.20
  4. Step 4: Simplify right side
    136,664,658.60x = 10,345,796,756,288,154
  5. Step 5: Solve for x
    x = 10,345,796,756,288,154/136,664,658.60
  6. Step 6: Final answer
    x = 75,702,064.18

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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.