Finding the Fourth Proportional to 8,464,923.81, 11,685,161.88 and 5,715,331.70
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Solution
The fourth proportional to 8,464,923.81, 11,685,161.88 and 5,715,331.70 is: 7,889,566.11
Step by Step Solution
- Step 1: Write the proportion equation
8,464,923.81 : 11,685,161.88 = 5,715,331.70 : x - Step 2: Convert to fraction form
8,464,923.81/11,685,161.88 = 5,715,331.70/x - Step 3: Cross multiply
8,464,923.81x = 11,685,161.88 × 5,715,331.70 - Step 4: Simplify right side
8,464,923.81x = 66,784,576,053,969.80 - Step 5: Solve for x
x = 66,784,576,053,969.80/8,464,923.81 - Step 6: Final answer
x = 7,889,566.11
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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.