Home / 219,780,087.60-329,670,131.40-66,449,809.20

Finding the Fourth Proportional to 219,780,087.60, 329,670,131.40 and 66,449,809.20

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Solution

The fourth proportional to 219,780,087.60, 329,670,131.40 and 66,449,809.20 is: 99,674,713.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,780,087.60 : 329,670,131.40 = 66,449,809.20 : x
  2. Step 2: Convert to fraction form
    219,780,087.60/329,670,131.40 = 66,449,809.20/x
  3. Step 3: Cross multiply
    219,780,087.60x = 329,670,131.40 × 66,449,809.20
  4. Step 4: Simplify right side
    219,780,087.60x = 21,906,517,330,468,928
  5. Step 5: Solve for x
    x = 21,906,517,330,468,928/219,780,087.60
  6. Step 6: Final answer
    x = 99,674,713.80

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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.