Home / 187,765,077.86-281,589,972.20-129,844,958.07

Finding the Fourth Proportional to 187,765,077.86, 281,589,972.20 and 129,844,958.07

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Solution

The fourth proportional to 187,765,077.86, 281,589,972.20 and 129,844,958.07 is: 194,727,574.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,765,077.86 : 281,589,972.20 = 129,844,958.07 : x
  2. Step 2: Convert to fraction form
    187,765,077.86/281,589,972.20 = 129,844,958.07/x
  3. Step 3: Cross multiply
    187,765,077.86x = 281,589,972.20 × 129,844,958.07
  4. Step 4: Simplify right side
    187,765,077.86x = 36,563,038,133,241,464
  5. Step 5: Solve for x
    x = 36,563,038,133,241,464/187,765,077.86
  6. Step 6: Final answer
    x = 194,727,574.21

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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.