Home / 315,557,591.70-473,336,380.26-85,526,671.80

Finding the Fourth Proportional to 315,557,591.70, 473,336,380.26 and 85,526,671.80

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Solution

The fourth proportional to 315,557,591.70, 473,336,380.26 and 85,526,671.80 is: 128,290,005.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,557,591.70 : 473,336,380.26 = 85,526,671.80 : x
  2. Step 2: Convert to fraction form
    315,557,591.70/473,336,380.26 = 85,526,671.80/x
  3. Step 3: Cross multiply
    315,557,591.70x = 473,336,380.26 × 85,526,671.80
  4. Step 4: Simplify right side
    315,557,591.70x = 40,482,885,245,497,016
  5. Step 5: Solve for x
    x = 40,482,885,245,497,016/315,557,591.70
  6. Step 6: Final answer
    x = 128,290,005.72

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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.