Home / 218,829,787.40-328,244,681.10-91,162,382.60

Finding the Fourth Proportional to 218,829,787.40, 328,244,681.10 and 91,162,382.60

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Solution

The fourth proportional to 218,829,787.40, 328,244,681.10 and 91,162,382.60 is: 136,743,573.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,829,787.40 : 328,244,681.10 = 91,162,382.60 : x
  2. Step 2: Convert to fraction form
    218,829,787.40/328,244,681.10 = 91,162,382.60/x
  3. Step 3: Cross multiply
    218,829,787.40x = 328,244,681.10 × 91,162,382.60
  4. Step 4: Simplify right side
    218,829,787.40x = 29,923,567,204,853,188
  5. Step 5: Solve for x
    x = 29,923,567,204,853,188/218,829,787.40
  6. Step 6: Final answer
    x = 136,743,573.90

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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.