Home / 281,331,008.31-421,958,203.39-74,052,061.70

Finding the Fourth Proportional to 281,331,008.31, 421,958,203.39 and 74,052,061.70

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Solution

The fourth proportional to 281,331,008.31, 421,958,203.39 and 74,052,061.70 is: 111,068,008.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,331,008.31 : 421,958,203.39 = 74,052,061.70 : x
  2. Step 2: Convert to fraction form
    281,331,008.31/421,958,203.39 = 74,052,061.70/x
  3. Step 3: Cross multiply
    281,331,008.31x = 421,958,203.39 × 74,052,061.70
  4. Step 4: Simplify right side
    281,331,008.31x = 31,246,874,912,197,548
  5. Step 5: Solve for x
    x = 31,246,874,912,197,548/281,331,008.31
  6. Step 6: Final answer
    x = 111,068,008.82

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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.