Home / 18,711,557.52-28,078,533.36-8,073,989.52

Finding the Fourth Proportional to 18,711,557.52, 28,078,533.36 and 8,073,989.52

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Solution

The fourth proportional to 18,711,557.52, 28,078,533.36 and 8,073,989.52 is: 12,115,815.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,711,557.52 : 28,078,533.36 = 8,073,989.52 : x
  2. Step 2: Convert to fraction form
    18,711,557.52/28,078,533.36 = 8,073,989.52/x
  3. Step 3: Cross multiply
    18,711,557.52x = 28,078,533.36 × 8,073,989.52
  4. Step 4: Simplify right side
    18,711,557.52x = 226,705,784,085,610.38
  5. Step 5: Solve for x
    x = 226,705,784,085,610.38/18,711,557.52
  6. Step 6: Final answer
    x = 12,115,815.79

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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.