Home / 133,030,939.40-199,546,409.10-87,643,982.60

Finding the Fourth Proportional to 133,030,939.40, 199,546,409.10 and 87,643,982.60

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Solution

The fourth proportional to 133,030,939.40, 199,546,409.10 and 87,643,982.60 is: 131,465,973.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,030,939.40 : 199,546,409.10 = 87,643,982.60 : x
  2. Step 2: Convert to fraction form
    133,030,939.40/199,546,409.10 = 87,643,982.60/x
  3. Step 3: Cross multiply
    133,030,939.40x = 199,546,409.10 × 87,643,982.60
  4. Step 4: Simplify right side
    133,030,939.40x = 17,489,042,007,052,880
  5. Step 5: Solve for x
    x = 17,489,042,007,052,880/133,030,939.40
  6. Step 6: Final answer
    x = 131,465,973.90

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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.