Finding the Fourth Proportional to 13,321,901.44, 18,384,669.16 and 8,164,266.40
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Solution
The fourth proportional to 13,321,901.44, 18,384,669.16 and 8,164,266.40 is: 11,266,960.45
Step by Step Solution
- Step 1: Write the proportion equation
13,321,901.44 : 18,384,669.16 = 8,164,266.40 : x - Step 2: Convert to fraction form
13,321,901.44/18,384,669.16 = 8,164,266.40/x - Step 3: Cross multiply
13,321,901.44x = 18,384,669.16 × 8,164,266.40 - Step 4: Simplify right side
13,321,901.44x = 150,097,336,698,104.22 - Step 5: Solve for x
x = 150,097,336,698,104.22/13,321,901.44 - Step 6: Final answer
x = 11,266,960.45
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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.