Home / 12,481,221.40-18,723,905.70-4,908,434.20

Finding the Fourth Proportional to 12,481,221.40, 18,723,905.70 and 4,908,434.20

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Solution

The fourth proportional to 12,481,221.40, 18,723,905.70 and 4,908,434.20 is: 7,363,466.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,481,221.40 : 18,723,905.70 = 4,908,434.20 : x
  2. Step 2: Convert to fraction form
    12,481,221.40/18,723,905.70 = 4,908,434.20/x
  3. Step 3: Cross multiply
    12,481,221.40x = 18,723,905.70 × 4,908,434.20
  4. Step 4: Simplify right side
    12,481,221.40x = 91,905,059,095,454.94
  5. Step 5: Solve for x
    x = 91,905,059,095,454.94/12,481,221.40
  6. Step 6: Final answer
    x = 7,363,466.78

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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.