Home / 138,379,063.08-190,967,092.96-76,503,387.44

Finding the Fourth Proportional to 138,379,063.08, 190,967,092.96 and 76,503,387.44

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Solution

The fourth proportional to 138,379,063.08, 190,967,092.96 and 76,503,387.44 is: 105,576,878.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,379,063.08 : 190,967,092.96 = 76,503,387.44 : x
  2. Step 2: Convert to fraction form
    138,379,063.08/190,967,092.96 = 76,503,387.44/x
  3. Step 3: Cross multiply
    138,379,063.08x = 190,967,092.96 × 76,503,387.44
  4. Step 4: Simplify right side
    138,379,063.08x = 14,609,629,501,009,376
  5. Step 5: Solve for x
    x = 14,609,629,501,009,376/138,379,063.08
  6. Step 6: Final answer
    x = 105,576,878.29

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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.