Home / 117,134,378.82-161,655,116.31-64,939,786.74

Finding the Fourth Proportional to 117,134,378.82, 161,655,116.31 and 64,939,786.74

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Solution

The fourth proportional to 117,134,378.82, 161,655,116.31 and 64,939,786.74 is: 89,622,268.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,134,378.82 : 161,655,116.31 = 64,939,786.74 : x
  2. Step 2: Convert to fraction form
    117,134,378.82/161,655,116.31 = 64,939,786.74/x
  3. Step 3: Cross multiply
    117,134,378.82x = 161,655,116.31 × 64,939,786.74
  4. Step 4: Simplify right side
    117,134,378.82x = 10,497,848,778,601,296
  5. Step 5: Solve for x
    x = 10,497,848,778,601,296/117,134,378.82
  6. Step 6: Final answer
    x = 89,622,268.75

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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.