Home / 13,611,003.78-18,783,610.48-7,810,846.50

Finding the Fourth Proportional to 13,611,003.78, 18,783,610.48 and 7,810,846.50

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Solution

The fourth proportional to 13,611,003.78, 18,783,610.48 and 7,810,846.50 is: 10,779,212.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,611,003.78 : 18,783,610.48 = 7,810,846.50 : x
  2. Step 2: Convert to fraction form
    13,611,003.78/18,783,610.48 = 7,810,846.50/x
  3. Step 3: Cross multiply
    13,611,003.78x = 18,783,610.48 × 7,810,846.50
  4. Step 4: Simplify right side
    13,611,003.78x = 146,715,898,175,071.31
  5. Step 5: Solve for x
    x = 146,715,898,175,071.31/13,611,003.78
  6. Step 6: Final answer
    x = 10,779,212.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.