Finding the Fourth Proportional to 9,163,440.99, 12,644,811.09 and 5,296,212.63
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Solution
The fourth proportional to 9,163,440.99, 12,644,811.09 and 5,296,212.63 is: 7,308,347.19
Step by Step Solution
- Step 1: Write the proportion equation
9,163,440.99 : 12,644,811.09 = 5,296,212.63 : x - Step 2: Convert to fraction form
9,163,440.99/12,644,811.09 = 5,296,212.63/x - Step 3: Cross multiply
9,163,440.99x = 12,644,811.09 × 5,296,212.63 - Step 4: Simplify right side
9,163,440.99x = 66,969,608,198,822.06 - Step 5: Solve for x
x = 66,969,608,198,822.06/9,163,440.99 - Step 6: Final answer
x = 7,308,347.19
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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.