Home / 138,379,061.08-190,967,090.20-76,503,385.44

Finding the Fourth Proportional to 138,379,061.08, 190,967,090.20 and 76,503,385.44

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Solution

The fourth proportional to 138,379,061.08, 190,967,090.20 and 76,503,385.44 is: 105,576,875.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,379,061.08 : 190,967,090.20 = 76,503,385.44 : x
  2. Step 2: Convert to fraction form
    138,379,061.08/190,967,090.20 = 76,503,385.44/x
  3. Step 3: Cross multiply
    138,379,061.08x = 190,967,090.20 × 76,503,385.44
  4. Step 4: Simplify right side
    138,379,061.08x = 14,609,628,907,925,846
  5. Step 5: Solve for x
    x = 14,609,628,907,925,846/138,379,061.08
  6. Step 6: Final answer
    x = 105,576,875.53

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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.