Home / 100,042,382.07-138,072,986.64-57,647,693.58

Finding the Fourth Proportional to 100,042,382.07, 138,072,986.64 and 57,647,693.58

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Solution

The fourth proportional to 100,042,382.07, 138,072,986.64 and 57,647,693.58 is: 79,562,172.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,042,382.07 : 138,072,986.64 = 57,647,693.58 : x
  2. Step 2: Convert to fraction form
    100,042,382.07/138,072,986.64 = 57,647,693.58/x
  3. Step 3: Cross multiply
    100,042,382.07x = 138,072,986.64 × 57,647,693.58
  4. Step 4: Simplify right side
    100,042,382.07x = 7,959,589,225,498,153
  5. Step 5: Solve for x
    x = 7,959,589,225,498,153/100,042,382.07
  6. Step 6: Final answer
    x = 79,562,172.16

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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.