Home / 621,035,676.72-931,454,793.87-206,478,016.92

Finding the Fourth Proportional to 621,035,676.72, 931,454,793.87 and 206,478,016.92

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Solution

The fourth proportional to 621,035,676.72, 931,454,793.87 and 206,478,016.92 is: 309,684,203.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,035,676.72 : 931,454,793.87 = 206,478,016.92 : x
  2. Step 2: Convert to fraction form
    621,035,676.72/931,454,793.87 = 206,478,016.92/x
  3. Step 3: Cross multiply
    621,035,676.72x = 931,454,793.87 × 206,478,016.92
  4. Step 4: Simplify right side
    621,035,676.72x = 192,324,938,688,904,960
  5. Step 5: Solve for x
    x = 192,324,938,688,904,960/621,035,676.72
  6. Step 6: Final answer
    x = 309,684,203.18

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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.