Home / 420,763,845.96-631,145,771.46-114,055,957.62

Finding the Fourth Proportional to 420,763,845.96, 631,145,771.46 and 114,055,957.62

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Solution

The fourth proportional to 420,763,845.96, 631,145,771.46 and 114,055,957.62 is: 171,083,937.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,763,845.96 : 631,145,771.46 = 114,055,957.62 : x
  2. Step 2: Convert to fraction form
    420,763,845.96/631,145,771.46 = 114,055,957.62/x
  3. Step 3: Cross multiply
    420,763,845.96x = 631,145,771.46 × 114,055,957.62
  4. Step 4: Simplify right side
    420,763,845.96x = 71,985,935,361,683,976
  5. Step 5: Solve for x
    x = 71,985,935,361,683,976/420,763,845.96
  6. Step 6: Final answer
    x = 171,083,937.11

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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.