Home / 53,179,741.20-79,713,624.60-20,819,139.60

Finding the Fourth Proportional to 53,179,741.20, 79,713,624.60 and 20,819,139.60

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Solution

The fourth proportional to 53,179,741.20, 79,713,624.60 and 20,819,139.60 is: 31,206,791.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,179,741.20 : 79,713,624.60 = 20,819,139.60 : x
  2. Step 2: Convert to fraction form
    53,179,741.20/79,713,624.60 = 20,819,139.60/x
  3. Step 3: Cross multiply
    53,179,741.20x = 79,713,624.60 × 20,819,139.60
  4. Step 4: Simplify right side
    53,179,741.20x = 1,659,569,078,569,394.25
  5. Step 5: Solve for x
    x = 1,659,569,078,569,394.25/53,179,741.20
  6. Step 6: Final answer
    x = 31,206,791.18

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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.