Home / 763,372,285.92-1,145,058,253.92-218,113,826.40

Finding the Fourth Proportional to 763,372,285.92, 1,145,058,253.92 and 218,113,826.40

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Solution

The fourth proportional to 763,372,285.92, 1,145,058,253.92 and 218,113,826.40 is: 327,170,689.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,372,285.92 : 1,145,058,253.92 = 218,113,826.40 : x
  2. Step 2: Convert to fraction form
    763,372,285.92/1,145,058,253.92 = 218,113,826.40/x
  3. Step 3: Cross multiply
    763,372,285.92x = 1,145,058,253.92 × 218,113,826.40
  4. Step 4: Simplify right side
    763,372,285.92x = 249,753,037,213,394,016
  5. Step 5: Solve for x
    x = 249,753,037,213,394,016/763,372,285.92
  6. Step 6: Final answer
    x = 327,170,689.61

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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.