Home / 13,123,517.70-19,685,276.55-12,379,500.30

Finding the Fourth Proportional to 13,123,517.70, 19,685,276.55 and 12,379,500.30

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Solution

The fourth proportional to 13,123,517.70, 19,685,276.55 and 12,379,500.30 is: 18,569,250.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,123,517.70 : 19,685,276.55 = 12,379,500.30 : x
  2. Step 2: Convert to fraction form
    13,123,517.70/19,685,276.55 = 12,379,500.30/x
  3. Step 3: Cross multiply
    13,123,517.70x = 19,685,276.55 × 12,379,500.30
  4. Step 4: Simplify right side
    13,123,517.70x = 243,693,886,956,308
  5. Step 5: Solve for x
    x = 243,693,886,956,308/13,123,517.70
  6. Step 6: Final answer
    x = 18,569,250.45

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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.