Home / 208,762,009.20-312,505,284.60-162,845,506.80

Finding the Fourth Proportional to 208,762,009.20, 312,505,284.60 and 162,845,506.80

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Solution

The fourth proportional to 208,762,009.20, 312,505,284.60 and 162,845,506.80 is: 243,770,797.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,762,009.20 : 312,505,284.60 = 162,845,506.80 : x
  2. Step 2: Convert to fraction form
    208,762,009.20/312,505,284.60 = 162,845,506.80/x
  3. Step 3: Cross multiply
    208,762,009.20x = 312,505,284.60 × 162,845,506.80
  4. Step 4: Simplify right side
    208,762,009.20x = 50,890,081,448,365,240
  5. Step 5: Solve for x
    x = 50,890,081,448,365,240/208,762,009.20
  6. Step 6: Final answer
    x = 243,770,797.39

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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.