Home / 20,186,319.30-30,243,393.45-12,284,688.30

Finding the Fourth Proportional to 20,186,319.30, 30,243,393.45 and 12,284,688.30

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Solution

The fourth proportional to 20,186,319.30, 30,243,393.45 and 12,284,688.30 is: 18,405,072.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,186,319.30 : 30,243,393.45 = 12,284,688.30 : x
  2. Step 2: Convert to fraction form
    20,186,319.30/30,243,393.45 = 12,284,688.30/x
  3. Step 3: Cross multiply
    20,186,319.30x = 30,243,393.45 × 12,284,688.30
  4. Step 4: Simplify right side
    20,186,319.30x = 371,530,661,667,511.62
  5. Step 5: Solve for x
    x = 371,530,661,667,511.62/20,186,319.30
  6. Step 6: Final answer
    x = 18,405,072.08

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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.