Home / 12,457,943.10-18,683,415.45-3,940,890.30

Finding the Fourth Proportional to 12,457,943.10, 18,683,415.45 and 3,940,890.30

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Solution

The fourth proportional to 12,457,943.10, 18,683,415.45 and 3,940,890.30 is: 5,910,228.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,457,943.10 : 18,683,415.45 = 3,940,890.30 : x
  2. Step 2: Convert to fraction form
    12,457,943.10/18,683,415.45 = 3,940,890.30/x
  3. Step 3: Cross multiply
    12,457,943.10x = 18,683,415.45 × 3,940,890.30
  4. Step 4: Simplify right side
    12,457,943.10x = 73,629,290,717,775.12
  5. Step 5: Solve for x
    x = 73,629,290,717,775.12/12,457,943.10
  6. Step 6: Final answer
    x = 5,910,228.53

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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.