Home / 136,810,573.44-188,794,977.84-78,072,185.76

Finding the Fourth Proportional to 136,810,573.44, 188,794,977.84 and 78,072,185.76

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Solution

The fourth proportional to 136,810,573.44, 188,794,977.84 and 78,072,185.76 is: 107,737,554.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,810,573.44 : 188,794,977.84 = 78,072,185.76 : x
  2. Step 2: Convert to fraction form
    136,810,573.44/188,794,977.84 = 78,072,185.76/x
  3. Step 3: Cross multiply
    136,810,573.44x = 188,794,977.84 × 78,072,185.76
  4. Step 4: Simplify right side
    136,810,573.44x = 14,739,636,580,479,564
  5. Step 5: Solve for x
    x = 14,739,636,580,479,564/136,810,573.44
  6. Step 6: Final answer
    x = 107,737,554.27

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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.