Home / 12,379,635.90-18,569,453.85-7,844,672.70

Finding the Fourth Proportional to 12,379,635.90, 18,569,453.85 and 7,844,672.70

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Solution

The fourth proportional to 12,379,635.90, 18,569,453.85 and 7,844,672.70 is: 11,767,009.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,379,635.90 : 18,569,453.85 = 7,844,672.70 : x
  2. Step 2: Convert to fraction form
    12,379,635.90/18,569,453.85 = 7,844,672.70/x
  3. Step 3: Cross multiply
    12,379,635.90x = 18,569,453.85 × 7,844,672.70
  4. Step 4: Simplify right side
    12,379,635.90x = 145,671,287,671,004.91
  5. Step 5: Solve for x
    x = 145,671,287,671,004.91/12,379,635.90
  6. Step 6: Final answer
    x = 11,767,009.05

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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.