Home / 621,035,665.08-931,454,776.44-206,478,005.28

Finding the Fourth Proportional to 621,035,665.08, 931,454,776.44 and 206,478,005.28

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Solution

The fourth proportional to 621,035,665.08, 931,454,776.44 and 206,478,005.28 is: 309,684,185.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,035,665.08 : 931,454,776.44 = 206,478,005.28 : x
  2. Step 2: Convert to fraction form
    621,035,665.08/931,454,776.44 = 206,478,005.28/x
  3. Step 3: Cross multiply
    621,035,665.08x = 931,454,776.44 × 206,478,005.28
  4. Step 4: Simplify right side
    621,035,665.08x = 192,324,924,247,859,552
  5. Step 5: Solve for x
    x = 192,324,924,247,859,552/621,035,665.08
  6. Step 6: Final answer
    x = 309,684,185.73

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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.