Finding the Fourth Proportional to 11,856,665.12, 16,362,208.64 and 6,424,157.12
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Solution
The fourth proportional to 11,856,665.12, 16,362,208.64 and 6,424,157.12 is: 8,865,342.66
Step by Step Solution
- Step 1: Write the proportion equation
11,856,665.12 : 16,362,208.64 = 6,424,157.12 : x - Step 2: Convert to fraction form
11,856,665.12/16,362,208.64 = 6,424,157.12/x - Step 3: Cross multiply
11,856,665.12x = 16,362,208.64 × 6,424,157.12 - Step 4: Simplify right side
11,856,665.12x = 105,113,399,133,581.52 - Step 5: Solve for x
x = 105,113,399,133,581.52/11,856,665.12 - Step 6: Final answer
x = 8,865,342.66
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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.