Home / 138,147,738.54-190,642,892.18-75,423,834.56

Finding the Fourth Proportional to 138,147,738.54, 190,642,892.18 and 75,423,834.56

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Solution

The fourth proportional to 138,147,738.54, 190,642,892.18 and 75,423,834.56 is: 104,084,352.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,147,738.54 : 190,642,892.18 = 75,423,834.56 : x
  2. Step 2: Convert to fraction form
    138,147,738.54/190,642,892.18 = 75,423,834.56/x
  3. Step 3: Cross multiply
    138,147,738.54x = 190,642,892.18 × 75,423,834.56
  4. Step 4: Simplify right side
    138,147,738.54x = 14,379,017,959,824,238
  5. Step 5: Solve for x
    x = 14,379,017,959,824,238/138,147,738.54
  6. Step 6: Final answer
    x = 104,084,352.82

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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.