Home / 100,809,858.80-151,115,255.40-49,649,999.60

Finding the Fourth Proportional to 100,809,858.80, 151,115,255.40 and 49,649,999.60

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Solution

The fourth proportional to 100,809,858.80, 151,115,255.40 and 49,649,999.60 is: 74,425,978.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,809,858.80 : 151,115,255.40 = 49,649,999.60 : x
  2. Step 2: Convert to fraction form
    100,809,858.80/151,115,255.40 = 49,649,999.60/x
  3. Step 3: Cross multiply
    100,809,858.80x = 151,115,255.40 × 49,649,999.60
  4. Step 4: Simplify right side
    100,809,858.80x = 7,502,872,370,163,898
  5. Step 5: Solve for x
    x = 7,502,872,370,163,898/100,809,858.80
  6. Step 6: Final answer
    x = 74,425,978.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.