Home / 31,455,097,921.82-43,408,033,471.79-16,987,191,483.63

Finding the Fourth Proportional to 31,455,097,921.82, 43,408,033,471.79 and 16,987,191,483.63

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Solution

The fourth proportional to 31,455,097,921.82, 43,408,033,471.79 and 16,987,191,483.63 is: 23,442,323,350.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,455,097,921.82 : 43,408,033,471.79 = 16,987,191,483.63 : x
  2. Step 2: Convert to fraction form
    31,455,097,921.82/43,408,033,471.79 = 16,987,191,483.63/x
  3. Step 3: Cross multiply
    31,455,097,921.82x = 43,408,033,471.79 × 16,987,191,483.63
  4. Step 4: Simplify right side
    31,455,097,921.82x = 737,380,576,512,858,521,600
  5. Step 5: Solve for x
    x = 737,380,576,512,858,521,600/31,455,097,921.82
  6. Step 6: Final answer
    x = 23,442,323,350.75

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Double scale
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1.5x scale

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.