Home / 100,042,376.24-138,072,978.55-57,647,687.72

Finding the Fourth Proportional to 100,042,376.24, 138,072,978.55 and 57,647,687.72

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Solution

The fourth proportional to 100,042,376.24, 138,072,978.55 and 57,647,687.72 is: 79,562,164.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,042,376.24 : 138,072,978.55 = 57,647,687.72 : x
  2. Step 2: Convert to fraction form
    100,042,376.24/138,072,978.55 = 57,647,687.72/x
  3. Step 3: Cross multiply
    100,042,376.24x = 138,072,978.55 × 57,647,687.72
  4. Step 4: Simplify right side
    100,042,376.24x = 7,959,587,950,405,285
  5. Step 5: Solve for x
    x = 7,959,587,950,405,285/100,042,376.24
  6. Step 6: Final answer
    x = 79,562,164.05

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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.