Finding the Fourth Proportional to 13,345,586.07, 18,417,702.96 and 7,544,907.69
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Solution
The fourth proportional to 13,345,586.07, 18,417,702.96 and 7,544,907.69 is: 10,412,421.60
Step by Step Solution
- Step 1: Write the proportion equation
13,345,586.07 : 18,417,702.96 = 7,544,907.69 : x - Step 2: Convert to fraction form
13,345,586.07/18,417,702.96 = 7,544,907.69/x - Step 3: Cross multiply
13,345,586.07x = 18,417,702.96 × 7,544,907.69 - Step 4: Simplify right side
13,345,586.07x = 138,959,868,695,039.78 - Step 5: Solve for x
x = 138,959,868,695,039.78/13,345,586.07 - Step 6: Final answer
x = 10,412,421.60
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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.