Home / 117,120,971.24-161,626,955.64-64,913,377.52

Finding the Fourth Proportional to 117,120,971.24, 161,626,955.64 and 64,913,377.52

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Solution

The fourth proportional to 117,120,971.24, 161,626,955.64 and 64,913,377.52 is: 89,580,469.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,120,971.24 : 161,626,955.64 = 64,913,377.52 : x
  2. Step 2: Convert to fraction form
    117,120,971.24/161,626,955.64 = 64,913,377.52/x
  3. Step 3: Cross multiply
    117,120,971.24x = 161,626,955.64 × 64,913,377.52
  4. Step 4: Simplify right side
    117,120,971.24x = 10,491,751,588,867,612
  5. Step 5: Solve for x
    x = 10,491,751,588,867,612/117,120,971.24
  6. Step 6: Final answer
    x = 89,580,469.47

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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.