Home / 78,457,393.14-108,272,198.51-43,179,260.09

Finding the Fourth Proportional to 78,457,393.14, 108,272,198.51 and 43,179,260.09

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Solution

The fourth proportional to 78,457,393.14, 108,272,198.51 and 43,179,260.09 is: 59,587,927.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,457,393.14 : 108,272,198.51 = 43,179,260.09 : x
  2. Step 2: Convert to fraction form
    78,457,393.14/108,272,198.51 = 43,179,260.09/x
  3. Step 3: Cross multiply
    78,457,393.14x = 108,272,198.51 × 43,179,260.09
  4. Step 4: Simplify right side
    78,457,393.14x = 4,675,113,419,384,066
  5. Step 5: Solve for x
    x = 4,675,113,419,384,066/78,457,393.14
  6. Step 6: Final answer
    x = 59,587,927.05

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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.