Home / 15,698,269.71-21,663,629.64-8,728,872.12

Finding the Fourth Proportional to 15,698,269.71, 21,663,629.64 and 8,728,872.12

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Solution

The fourth proportional to 15,698,269.71, 21,663,629.64 and 8,728,872.12 is: 12,045,853.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,698,269.71 : 21,663,629.64 = 8,728,872.12 : x
  2. Step 2: Convert to fraction form
    15,698,269.71/21,663,629.64 = 8,728,872.12/x
  3. Step 3: Cross multiply
    15,698,269.71x = 21,663,629.64 × 8,728,872.12
  4. Step 4: Simplify right side
    15,698,269.71x = 189,099,052,782,601.62
  5. Step 5: Solve for x
    x = 189,099,052,782,601.62/15,698,269.71
  6. Step 6: Final answer
    x = 12,045,853.22

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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.