Home / 12,469,807.60-18,700,045.80-4,379,657.20

Finding the Fourth Proportional to 12,469,807.60, 18,700,045.80 and 4,379,657.20

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Solution

The fourth proportional to 12,469,807.60, 18,700,045.80 and 4,379,657.20 is: 6,567,847.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,469,807.60 : 18,700,045.80 = 4,379,657.20 : x
  2. Step 2: Convert to fraction form
    12,469,807.60/18,700,045.80 = 4,379,657.20/x
  3. Step 3: Cross multiply
    12,469,807.60x = 18,700,045.80 × 4,379,657.20
  4. Step 4: Simplify right side
    12,469,807.60x = 81,899,790,228,299.77
  5. Step 5: Solve for x
    x = 81,899,790,228,299.77/12,469,807.60
  6. Step 6: Final answer
    x = 6,567,847.14

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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.