Home / 489,889,506.60-735,170,183.10-217,455,791.40

Finding the Fourth Proportional to 489,889,506.60, 735,170,183.10 and 217,455,791.40

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Solution

The fourth proportional to 489,889,506.60, 735,170,183.10 and 217,455,791.40 is: 326,332,799.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,889,506.60 : 735,170,183.10 = 217,455,791.40 : x
  2. Step 2: Convert to fraction form
    489,889,506.60/735,170,183.10 = 217,455,791.40/x
  3. Step 3: Cross multiply
    489,889,506.60x = 735,170,183.10 × 217,455,791.40
  4. Step 4: Simplify right side
    489,889,506.60x = 159,867,013,979,693,408
  5. Step 5: Solve for x
    x = 159,867,013,979,693,408/489,889,506.60
  6. Step 6: Final answer
    x = 326,332,799.18

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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.