Home / 145,244,885.85-200,436,647.61-79,165,380.69

Finding the Fourth Proportional to 145,244,885.85, 200,436,647.61 and 79,165,380.69

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Solution

The fourth proportional to 145,244,885.85, 200,436,647.61 and 79,165,380.69 is: 109,247,519.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,244,885.85 : 200,436,647.61 = 79,165,380.69 : x
  2. Step 2: Convert to fraction form
    145,244,885.85/200,436,647.61 = 79,165,380.69/x
  3. Step 3: Cross multiply
    145,244,885.85x = 200,436,647.61 × 79,165,380.69
  4. Step 4: Simplify right side
    145,244,885.85x = 15,867,643,512,273,030
  5. Step 5: Solve for x
    x = 15,867,643,512,273,030/145,244,885.85
  6. Step 6: Final answer
    x = 109,247,519.59

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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.