Home / 28,085,389.20-42,159,576.60-21,723,843.60

Finding the Fourth Proportional to 28,085,389.20, 42,159,576.60 and 21,723,843.60

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Solution

The fourth proportional to 28,085,389.20, 42,159,576.60 and 21,723,843.60 is: 32,610,124.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,085,389.20 : 42,159,576.60 = 21,723,843.60 : x
  2. Step 2: Convert to fraction form
    28,085,389.20/42,159,576.60 = 21,723,843.60/x
  3. Step 3: Cross multiply
    28,085,389.20x = 42,159,576.60 × 21,723,843.60
  4. Step 4: Simplify right side
    28,085,389.20x = 915,868,048,300,619.88
  5. Step 5: Solve for x
    x = 915,868,048,300,619.88/28,085,389.20
  6. Step 6: Final answer
    x = 32,610,124.85

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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.