Finding the Fourth Proportional to 13,701,192.99, 18,907,639.79 and 8,194,567.74
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Solution
The fourth proportional to 13,701,192.99, 18,907,639.79 and 8,194,567.74 is: 11,308,499.57
Step by Step Solution
- Step 1: Write the proportion equation
13,701,192.99 : 18,907,639.79 = 8,194,567.74 : x - Step 2: Convert to fraction form
13,701,192.99/18,907,639.79 = 8,194,567.74/x - Step 3: Cross multiply
13,701,192.99x = 18,907,639.79 × 8,194,567.74 - Step 4: Simplify right side
13,701,192.99x = 154,939,935,021,701.53 - Step 5: Solve for x
x = 154,939,935,021,701.53/13,701,192.99 - Step 6: Final answer
x = 11,308,499.57
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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.