Home / 78,782,128.94-108,737,477.79-46,197,578.54

Finding the Fourth Proportional to 78,782,128.94, 108,737,477.79 and 46,197,578.54

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Solution

The fourth proportional to 78,782,128.94, 108,737,477.79 and 46,197,578.54 is: 63,763,295.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,782,128.94 : 108,737,477.79 = 46,197,578.54 : x
  2. Step 2: Convert to fraction form
    78,782,128.94/108,737,477.79 = 46,197,578.54/x
  3. Step 3: Cross multiply
    78,782,128.94x = 108,737,477.79 × 46,197,578.54
  4. Step 4: Simplify right side
    78,782,128.94x = 5,023,408,170,445,031
  5. Step 5: Solve for x
    x = 5,023,408,170,445,031/78,782,128.94
  6. Step 6: Final answer
    x = 63,763,295.53

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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.