Home / 187,958,634.21-281,951,539.88-78,673,894.29

Finding the Fourth Proportional to 187,958,634.21, 281,951,539.88 and 78,673,894.29

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Solution

The fourth proportional to 187,958,634.21, 281,951,539.88 and 78,673,894.29 is: 118,016,529.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,958,634.21 : 281,951,539.88 = 78,673,894.29 : x
  2. Step 2: Convert to fraction form
    187,958,634.21/281,951,539.88 = 78,673,894.29/x
  3. Step 3: Cross multiply
    187,958,634.21x = 281,951,539.88 × 78,673,894.29
  4. Step 4: Simplify right side
    187,958,634.21x = 22,182,225,643,028,472
  5. Step 5: Solve for x
    x = 22,182,225,643,028,472/187,958,634.21
  6. Step 6: Final answer
    x = 118,016,529.20

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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.