Home / 221,222,558,504.70-305,283,908,280.25-123,565,589,064.31

Finding the Fourth Proportional to 221,222,558,504.70, 305,283,908,280.25 and 123,565,589,064.31

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Solution

The fourth proportional to 221,222,558,504.70, 305,283,908,280.25 and 123,565,589,064.31 is: 170,518,712,980.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,222,558,504.70 : 305,283,908,280.25 = 123,565,589,064.31 : x
  2. Step 2: Convert to fraction form
    221,222,558,504.70/305,283,908,280.25 = 123,565,589,064.31/x
  3. Step 3: Cross multiply
    221,222,558,504.70x = 305,283,908,280.25 × 123,565,589,064.31
  4. Step 4: Simplify right side
    221,222,558,504.70x = 37,722,585,958,503,875,084,288
  5. Step 5: Solve for x
    x = 37,722,585,958,503,875,084,288/221,222,558,504.70
  6. Step 6: Final answer
    x = 170,518,712,980.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.