Home / 15,436,668.32-21,299,785.60-8,907,916

Finding the Fourth Proportional to 15,436,668.32, 21,299,785.60 and 8,907,916

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Solution

The fourth proportional to 15,436,668.32, 21,299,785.60 and 8,907,916 is: 12,291,298.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,436,668.32 : 21,299,785.60 = 8,907,916 : x
  2. Step 2: Convert to fraction form
    15,436,668.32/21,299,785.60 = 8,907,916/x
  3. Step 3: Cross multiply
    15,436,668.32x = 21,299,785.60 × 8,907,916
  4. Step 4: Simplify right side
    15,436,668.32x = 189,736,700,942,809.62
  5. Step 5: Solve for x
    x = 189,736,700,942,809.62/15,436,668.32
  6. Step 6: Final answer
    x = 12,291,298.68

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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.