Home / 74,010,991.72-102,136,378.26-40,519,912.36

Finding the Fourth Proportional to 74,010,991.72, 102,136,378.26 and 40,519,912.36

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Solution

The fourth proportional to 74,010,991.72, 102,136,378.26 and 40,519,912.36 is: 55,918,141.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,010,991.72 : 102,136,378.26 = 40,519,912.36 : x
  2. Step 2: Convert to fraction form
    74,010,991.72/102,136,378.26 = 40,519,912.36/x
  3. Step 3: Cross multiply
    74,010,991.72x = 102,136,378.26 × 40,519,912.36
  4. Step 4: Simplify right side
    74,010,991.72x = 4,138,557,095,863,009.50
  5. Step 5: Solve for x
    x = 4,138,557,095,863,009.50/74,010,991.72
  6. Step 6: Final answer
    x = 55,918,141.34

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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.