Home / 367,415,999.70-551,123,999.55-137,355,190.80

Finding the Fourth Proportional to 367,415,999.70, 551,123,999.55 and 137,355,190.80

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Solution

The fourth proportional to 367,415,999.70, 551,123,999.55 and 137,355,190.80 is: 206,032,786.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,415,999.70 : 551,123,999.55 = 137,355,190.80 : x
  2. Step 2: Convert to fraction form
    367,415,999.70/551,123,999.55 = 137,355,190.80/x
  3. Step 3: Cross multiply
    367,415,999.70x = 551,123,999.55 × 137,355,190.80
  4. Step 4: Simplify right side
    367,415,999.70x = 75,699,742,112,649,360
  5. Step 5: Solve for x
    x = 75,699,742,112,649,360/367,415,999.70
  6. Step 6: Final answer
    x = 206,032,786.20

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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.