Home / 53,198,999.60-79,798,499.40-20,840,147.60

Finding the Fourth Proportional to 53,198,999.60, 79,798,499.40 and 20,840,147.60

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Solution

The fourth proportional to 53,198,999.60, 79,798,499.40 and 20,840,147.60 is: 31,260,221.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,198,999.60 : 79,798,499.40 = 20,840,147.60 : x
  2. Step 2: Convert to fraction form
    53,198,999.60/79,798,499.40 = 20,840,147.60/x
  3. Step 3: Cross multiply
    53,198,999.60x = 79,798,499.40 × 20,840,147.60
  4. Step 4: Simplify right side
    53,198,999.60x = 1,663,012,505,754,511.75
  5. Step 5: Solve for x
    x = 1,663,012,505,754,511.75/53,198,999.60
  6. Step 6: Final answer
    x = 31,260,221.40

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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.