Home / 345,431,665.74-517,620,247.56-205,095,773.22

Finding the Fourth Proportional to 345,431,665.74, 517,620,247.56 and 205,095,773.22

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Solution

The fourth proportional to 345,431,665.74, 517,620,247.56 and 205,095,773.22 is: 307,330,611.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,431,665.74 : 517,620,247.56 = 205,095,773.22 : x
  2. Step 2: Convert to fraction form
    345,431,665.74/517,620,247.56 = 205,095,773.22/x
  3. Step 3: Cross multiply
    345,431,665.74x = 517,620,247.56 × 205,095,773.22
  4. Step 4: Simplify right side
    345,431,665.74x = 106,161,724,907,646,016
  5. Step 5: Solve for x
    x = 106,161,724,907,646,016/345,431,665.74
  6. Step 6: Final answer
    x = 307,330,611.05

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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.