Home / 78,941,467.56-108,933,694.92-45,899,372.52

Finding the Fourth Proportional to 78,941,467.56, 108,933,694.92 and 45,899,372.52

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Solution

The fourth proportional to 78,941,467.56, 108,933,694.92 and 45,899,372.52 is: 63,337,918.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,941,467.56 : 108,933,694.92 = 45,899,372.52 : x
  2. Step 2: Convert to fraction form
    78,941,467.56/108,933,694.92 = 45,899,372.52/x
  3. Step 3: Cross multiply
    78,941,467.56x = 108,933,694.92 × 45,899,372.52
  4. Step 4: Simplify right side
    78,941,467.56x = 4,999,988,243,113,112
  5. Step 5: Solve for x
    x = 4,999,988,243,113,112/78,941,467.56
  6. Step 6: Final answer
    x = 63,337,918.56

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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.