Home / 12,237,807.20-18,363,709.20-8,454,005.60

Finding the Fourth Proportional to 12,237,807.20, 18,363,709.20 and 8,454,005.60

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Solution

The fourth proportional to 12,237,807.20, 18,363,709.20 and 8,454,005.60 is: 12,685,842.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,237,807.20 : 18,363,709.20 = 8,454,005.60 : x
  2. Step 2: Convert to fraction form
    12,237,807.20/18,363,709.20 = 8,454,005.60/x
  3. Step 3: Cross multiply
    12,237,807.20x = 18,363,709.20 × 8,454,005.60
  4. Step 4: Simplify right side
    12,237,807.20x = 155,246,900,413,571.50
  5. Step 5: Solve for x
    x = 155,246,900,413,571.50/12,237,807.20
  6. Step 6: Final answer
    x = 12,685,842.97

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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.