Home / 19,181,709.20-28,725,324.60-9,072,520.40

Finding the Fourth Proportional to 19,181,709.20, 28,725,324.60 and 9,072,520.40

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Solution

The fourth proportional to 19,181,709.20, 28,725,324.60 and 9,072,520.40 is: 13,586,437.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,181,709.20 : 28,725,324.60 = 9,072,520.40 : x
  2. Step 2: Convert to fraction form
    19,181,709.20/28,725,324.60 = 9,072,520.40/x
  3. Step 3: Cross multiply
    19,181,709.20x = 28,725,324.60 × 9,072,520.40
  4. Step 4: Simplify right side
    19,181,709.20x = 260,611,093,430,121.88
  5. Step 5: Solve for x
    x = 260,611,093,430,121.88/19,181,709.20
  6. Step 6: Final answer
    x = 13,586,437.51

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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.