Home / 221,183,999.40-331,775,999.10-201,012,018.60

Finding the Fourth Proportional to 221,183,999.40, 331,775,999.10 and 201,012,018.60

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Solution

The fourth proportional to 221,183,999.40, 331,775,999.10 and 201,012,018.60 is: 301,518,027.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,183,999.40 : 331,775,999.10 = 201,012,018.60 : x
  2. Step 2: Convert to fraction form
    221,183,999.40/331,775,999.10 = 201,012,018.60/x
  3. Step 3: Cross multiply
    221,183,999.40x = 331,775,999.10 × 201,012,018.60
  4. Step 4: Simplify right side
    221,183,999.40x = 66,690,963,302,122,784
  5. Step 5: Solve for x
    x = 66,690,963,302,122,784/221,183,999.40
  6. Step 6: Final answer
    x = 301,518,027.90

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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.