Home / 100,042,379.07-138,072,982.50-57,647,690.59

Finding the Fourth Proportional to 100,042,379.07, 138,072,982.50 and 57,647,690.59

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Solution

The fourth proportional to 100,042,379.07, 138,072,982.50 and 57,647,690.59 is: 79,562,168.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,042,379.07 : 138,072,982.50 = 57,647,690.59 : x
  2. Step 2: Convert to fraction form
    100,042,379.07/138,072,982.50 = 57,647,690.59/x
  3. Step 3: Cross multiply
    100,042,379.07x = 138,072,982.50 × 57,647,690.59
  4. Step 4: Simplify right side
    100,042,379.07x = 7,959,588,573,847,403
  5. Step 5: Solve for x
    x = 7,959,588,573,847,403/100,042,379.07
  6. Step 6: Final answer
    x = 79,562,168.03

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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.