Home / 221,929,431.12-331,533,301.32-159,989,982.30

Finding the Fourth Proportional to 221,929,431.12, 331,533,301.32 and 159,989,982.30

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Solution

The fourth proportional to 221,929,431.12, 331,533,301.32 and 159,989,982.30 is: 239,003,933.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,929,431.12 : 331,533,301.32 = 159,989,982.30 : x
  2. Step 2: Convert to fraction form
    221,929,431.12/331,533,301.32 = 159,989,982.30/x
  3. Step 3: Cross multiply
    221,929,431.12x = 331,533,301.32 × 159,989,982.30
  4. Step 4: Simplify right side
    221,929,431.12x = 53,042,007,010,047,368
  5. Step 5: Solve for x
    x = 53,042,007,010,047,368/221,929,431.12
  6. Step 6: Final answer
    x = 239,003,933.56

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.