Home / 13,526,171.52-20,289,552.66-8,139,328.08

Finding the Fourth Proportional to 13,526,171.52, 20,289,552.66 and 8,139,328.08

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Solution

The fourth proportional to 13,526,171.52, 20,289,552.66 and 8,139,328.08 is: 12,209,169.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,526,171.52 : 20,289,552.66 = 8,139,328.08 : x
  2. Step 2: Convert to fraction form
    13,526,171.52/20,289,552.66 = 8,139,328.08/x
  3. Step 3: Cross multiply
    13,526,171.52x = 20,289,552.66 × 8,139,328.08
  4. Step 4: Simplify right side
    13,526,171.52x = 165,143,325,696,176.69
  5. Step 5: Solve for x
    x = 165,143,325,696,176.69/13,526,171.52
  6. Step 6: Final answer
    x = 12,209,169.86

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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.