Finding the Fourth Proportional to 13,213,828.80, 19,804,996.80 and 5,537,458.80
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Solution
The fourth proportional to 13,213,828.80, 19,804,996.80 and 5,537,458.80 is: 8,299,589.43
Step by Step Solution
- Step 1: Write the proportion equation
13,213,828.80 : 19,804,996.80 = 5,537,458.80 : x - Step 2: Convert to fraction form
13,213,828.80/19,804,996.80 = 5,537,458.80/x - Step 3: Cross multiply
13,213,828.80x = 19,804,996.80 × 5,537,458.80 - Step 4: Simplify right side
13,213,828.80x = 109,669,353,814,131.84 - Step 5: Solve for x
x = 109,669,353,814,131.84/13,213,828.80 - Step 6: Final answer
x = 8,299,589.43
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.