Home / 65,629,042.80-98,443,564.20-20,190,764.40

Finding the Fourth Proportional to 65,629,042.80, 98,443,564.20 and 20,190,764.40

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Solution

The fourth proportional to 65,629,042.80, 98,443,564.20 and 20,190,764.40 is: 30,286,146.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,629,042.80 : 98,443,564.20 = 20,190,764.40 : x
  2. Step 2: Convert to fraction form
    65,629,042.80/98,443,564.20 = 20,190,764.40/x
  3. Step 3: Cross multiply
    65,629,042.80x = 98,443,564.20 × 20,190,764.40
  4. Step 4: Simplify right side
    65,629,042.80x = 1,987,650,811,458,474.50
  5. Step 5: Solve for x
    x = 1,987,650,811,458,474.50/65,629,042.80
  6. Step 6: Final answer
    x = 30,286,146.60

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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.