Home / 28,142,056.85-42,212,641.79-8,972,684.73

Finding the Fourth Proportional to 28,142,056.85, 42,212,641.79 and 8,972,684.73

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Solution

The fourth proportional to 28,142,056.85, 42,212,641.79 and 8,972,684.73 is: 13,458,885.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,142,056.85 : 42,212,641.79 = 8,972,684.73 : x
  2. Step 2: Convert to fraction form
    28,142,056.85/42,212,641.79 = 8,972,684.73/x
  3. Step 3: Cross multiply
    28,142,056.85x = 42,212,641.79 × 8,972,684.73
  4. Step 4: Simplify right side
    28,142,056.85x = 378,760,726,424,524.56
  5. Step 5: Solve for x
    x = 378,760,726,424,524.56/28,142,056.85
  6. Step 6: Final answer
    x = 13,458,885.70

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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.