Home / 18,663,836.31-27,985,623.78-8,416,706.58

Finding the Fourth Proportional to 18,663,836.31, 27,985,623.78 and 8,416,706.58

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Solution

The fourth proportional to 18,663,836.31, 27,985,623.78 and 8,416,706.58 is: 12,620,491.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,663,836.31 : 27,985,623.78 = 8,416,706.58 : x
  2. Step 2: Convert to fraction form
    18,663,836.31/27,985,623.78 = 8,416,706.58/x
  3. Step 3: Cross multiply
    18,663,836.31x = 27,985,623.78 × 8,416,706.58
  4. Step 4: Simplify right side
    18,663,836.31x = 235,546,783,814,530.50
  5. Step 5: Solve for x
    x = 235,546,783,814,530.50/18,663,836.31
  6. Step 6: Final answer
    x = 12,620,491.30

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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.