Finding the Fourth Proportional to 3,890,227.08, 5,368,783.86 and 2,171,683.08
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Solution
The fourth proportional to 3,890,227.08, 5,368,783.86 and 2,171,683.08 is: 2,997,073.65
Step by Step Solution
- Step 1: Write the proportion equation
3,890,227.08 : 5,368,783.86 = 2,171,683.08 : x - Step 2: Convert to fraction form
3,890,227.08/5,368,783.86 = 2,171,683.08/x - Step 3: Cross multiply
3,890,227.08x = 5,368,783.86 × 2,171,683.08 - Step 4: Simplify right side
3,890,227.08x = 11,659,297,068,939.09 - Step 5: Solve for x
x = 11,659,297,068,939.09/3,890,227.08 - Step 6: Final answer
x = 2,997,073.65
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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.