Home / 13,813,228.70-20,679,984.98-12,218,905.70

Finding the Fourth Proportional to 13,813,228.70, 20,679,984.98 and 12,218,905.70

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Solution

The fourth proportional to 13,813,228.70, 20,679,984.98 and 12,218,905.70 is: 18,293,100.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,813,228.70 : 20,679,984.98 = 12,218,905.70 : x
  2. Step 2: Convert to fraction form
    13,813,228.70/20,679,984.98 = 12,218,905.70/x
  3. Step 3: Cross multiply
    13,813,228.70x = 20,679,984.98 × 12,218,905.70
  4. Step 4: Simplify right side
    13,813,228.70x = 252,686,786,286,941.88
  5. Step 5: Solve for x
    x = 252,686,786,286,941.88/13,813,228.70
  6. Step 6: Final answer
    x = 18,293,100.89

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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.