Home / 138,147,749.10-190,642,906.67-75,423,844.98

Finding the Fourth Proportional to 138,147,749.10, 190,642,906.67 and 75,423,844.98

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Solution

The fourth proportional to 138,147,749.10, 190,642,906.67 and 75,423,844.98 is: 104,084,367.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,147,749.10 : 190,642,906.67 = 75,423,844.98 : x
  2. Step 2: Convert to fraction form
    138,147,749.10/190,642,906.67 = 75,423,844.98/x
  3. Step 3: Cross multiply
    138,147,749.10x = 190,642,906.67 × 75,423,844.98
  4. Step 4: Simplify right side
    138,147,749.10x = 14,379,021,038,837,568
  5. Step 5: Solve for x
    x = 14,379,021,038,837,568/138,147,749.10
  6. Step 6: Final answer
    x = 104,084,367.15

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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.