Home / 78,820,391.88-108,769,959.09-43,537,564.62

Finding the Fourth Proportional to 78,820,391.88, 108,769,959.09 and 43,537,564.62

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Solution

The fourth proportional to 78,820,391.88, 108,769,959.09 and 43,537,564.62 is: 60,080,634.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,820,391.88 : 108,769,959.09 = 43,537,564.62 : x
  2. Step 2: Convert to fraction form
    78,820,391.88/108,769,959.09 = 43,537,564.62/x
  3. Step 3: Cross multiply
    78,820,391.88x = 108,769,959.09 × 43,537,564.62
  4. Step 4: Simplify right side
    78,820,391.88x = 4,735,579,122,595,631
  5. Step 5: Solve for x
    x = 4,735,579,122,595,631/78,820,391.88
  6. Step 6: Final answer
    x = 60,080,634.08

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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.