Finding the Fourth Proportional to 8,163,557.68, 11,261,940.06 and 5,263,879.90
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Solution
The fourth proportional to 8,163,557.68, 11,261,940.06 and 5,263,879.90 is: 7,261,723.66
Step by Step Solution
- Step 1: Write the proportion equation
8,163,557.68 : 11,261,940.06 = 5,263,879.90 : x - Step 2: Convert to fraction form
8,163,557.68/11,261,940.06 = 5,263,879.90/x - Step 3: Cross multiply
8,163,557.68x = 11,261,940.06 × 5,263,879.90 - Step 4: Simplify right side
8,163,557.68x = 59,281,499,916,838.80 - Step 5: Solve for x
x = 59,281,499,916,838.80/8,163,557.68 - Step 6: Final answer
x = 7,261,723.66
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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.