Home / 278,787,122.30-384,807,329.30-185,967,408.72

Finding the Fourth Proportional to 278,787,122.30, 384,807,329.30 and 185,967,408.72

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Solution

The fourth proportional to 278,787,122.30, 384,807,329.30 and 185,967,408.72 is: 256,689,122.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,787,122.30 : 384,807,329.30 = 185,967,408.72 : x
  2. Step 2: Convert to fraction form
    278,787,122.30/384,807,329.30 = 185,967,408.72/x
  3. Step 3: Cross multiply
    278,787,122.30x = 384,807,329.30 × 185,967,408.72
  4. Step 4: Simplify right side
    278,787,122.30x = 71,561,621,886,384,736
  5. Step 5: Solve for x
    x = 71,561,621,886,384,736/278,787,122.30
  6. Step 6: Final answer
    x = 256,689,122.85

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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.