Home / 28,276,845.60-42,412,092.06-7,809,474.86

Finding the Fourth Proportional to 28,276,845.60, 42,412,092.06 and 7,809,474.86

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Solution

The fourth proportional to 28,276,845.60, 42,412,092.06 and 7,809,474.86 is: 11,713,335.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,276,845.60 : 42,412,092.06 = 7,809,474.86 : x
  2. Step 2: Convert to fraction form
    28,276,845.60/42,412,092.06 = 7,809,474.86/x
  3. Step 3: Cross multiply
    28,276,845.60x = 42,412,092.06 × 7,809,474.86
  4. Step 4: Simplify right side
    28,276,845.60x = 331,216,166,702,575.62
  5. Step 5: Solve for x
    x = 331,216,166,702,575.62/28,276,845.60
  6. Step 6: Final answer
    x = 11,713,335.05

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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.