Home / 28,339,628.40-42,509,442.60-11,302,930.80

Finding the Fourth Proportional to 28,339,628.40, 42,509,442.60 and 11,302,930.80

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Solution

The fourth proportional to 28,339,628.40, 42,509,442.60 and 11,302,930.80 is: 16,954,396.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,339,628.40 : 42,509,442.60 = 11,302,930.80 : x
  2. Step 2: Convert to fraction form
    28,339,628.40/42,509,442.60 = 11,302,930.80/x
  3. Step 3: Cross multiply
    28,339,628.40x = 42,509,442.60 × 11,302,930.80
  4. Step 4: Simplify right side
    28,339,628.40x = 480,481,288,054,372.12
  5. Step 5: Solve for x
    x = 480,481,288,054,372.12/28,339,628.40
  6. Step 6: Final answer
    x = 16,954,396.20

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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.