Home / 12,457,947.10-18,683,421.45-3,940,894.30

Finding the Fourth Proportional to 12,457,947.10, 18,683,421.45 and 3,940,894.30

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Solution

The fourth proportional to 12,457,947.10, 18,683,421.45 and 3,940,894.30 is: 5,910,234.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,457,947.10 : 18,683,421.45 = 3,940,894.30 : x
  2. Step 2: Convert to fraction form
    12,457,947.10/18,683,421.45 = 3,940,894.30/x
  3. Step 3: Cross multiply
    12,457,947.10x = 18,683,421.45 × 3,940,894.30
  4. Step 4: Simplify right side
    12,457,947.10x = 73,629,389,096,802.73
  5. Step 5: Solve for x
    x = 73,629,389,096,802.73/12,457,947.10
  6. Step 6: Final answer
    x = 5,910,234.53

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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.