Home / 80,464,289.72-111,080,082.87-53,993,172.47

Finding the Fourth Proportional to 80,464,289.72, 111,080,082.87 and 53,993,172.47

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Solution

The fourth proportional to 80,464,289.72, 111,080,082.87 and 53,993,172.47 is: 74,536,991.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,464,289.72 : 111,080,082.87 = 53,993,172.47 : x
  2. Step 2: Convert to fraction form
    80,464,289.72/111,080,082.87 = 53,993,172.47/x
  3. Step 3: Cross multiply
    80,464,289.72x = 111,080,082.87 × 53,993,172.47
  4. Step 4: Simplify right side
    80,464,289.72x = 5,997,566,071,826,403
  5. Step 5: Solve for x
    x = 5,997,566,071,826,403/80,464,289.72
  6. Step 6: Final answer
    x = 74,536,991.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.