Home / 138,147,751.56-190,642,910.13-75,423,847.56

Finding the Fourth Proportional to 138,147,751.56, 190,642,910.13 and 75,423,847.56

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Solution

The fourth proportional to 138,147,751.56, 190,642,910.13 and 75,423,847.56 is: 104,084,370.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,147,751.56 : 190,642,910.13 = 75,423,847.56 : x
  2. Step 2: Convert to fraction form
    138,147,751.56/190,642,910.13 = 75,423,847.56/x
  3. Step 3: Cross multiply
    138,147,751.56x = 190,642,910.13 × 75,423,847.56
  4. Step 4: Simplify right side
    138,147,751.56x = 14,379,021,792,039,900
  5. Step 5: Solve for x
    x = 14,379,021,792,039,900/138,147,751.56
  6. Step 6: Final answer
    x = 104,084,370.75

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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.