Home / 74,010,890.78-102,136,238.44-40,519,811.06

Finding the Fourth Proportional to 74,010,890.78, 102,136,238.44 and 40,519,811.06

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Solution

The fourth proportional to 74,010,890.78, 102,136,238.44 and 40,519,811.06 is: 55,918,001.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,010,890.78 : 102,136,238.44 = 40,519,811.06 : x
  2. Step 2: Convert to fraction form
    74,010,890.78/102,136,238.44 = 40,519,811.06/x
  3. Step 3: Cross multiply
    74,010,890.78x = 102,136,238.44 × 40,519,811.06
  4. Step 4: Simplify right side
    74,010,890.78x = 4,138,541,083,355,928.50
  5. Step 5: Solve for x
    x = 4,138,541,083,355,928.50/74,010,890.78
  6. Step 6: Final answer
    x = 55,918,001.26

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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.