Home / 159,380,821.03-219,828,455.20-105,638,286.73

Finding the Fourth Proportional to 159,380,821.03, 219,828,455.20 and 105,638,286.73

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Solution

The fourth proportional to 159,380,821.03, 219,828,455.20 and 105,638,286.73 is: 145,703,236.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,380,821.03 : 219,828,455.20 = 105,638,286.73 : x
  2. Step 2: Convert to fraction form
    159,380,821.03/219,828,455.20 = 105,638,286.73/x
  3. Step 3: Cross multiply
    159,380,821.03x = 219,828,455.20 × 105,638,286.73
  4. Step 4: Simplify right side
    159,380,821.03x = 23,222,301,381,830,560
  5. Step 5: Solve for x
    x = 23,222,301,381,830,560/159,380,821.03
  6. Step 6: Final answer
    x = 145,703,236.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.