Finding the Fourth Proportional to 13,558,006.88, 18,702,239.28 and 8,122,349.60
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Solution
The fourth proportional to 13,558,006.88, 18,702,239.28 and 8,122,349.60 is: 11,204,163.49
Step by Step Solution
- Step 1: Write the proportion equation
13,558,006.88 : 18,702,239.28 = 8,122,349.60 : x - Step 2: Convert to fraction form
13,558,006.88/18,702,239.28 = 8,122,349.60/x - Step 3: Cross multiply
13,558,006.88x = 18,702,239.28 × 8,122,349.60 - Step 4: Simplify right side
13,558,006.88x = 151,906,125,735,012.28 - Step 5: Solve for x
x = 151,906,125,735,012.28/13,558,006.88 - Step 6: Final answer
x = 11,204,163.49
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.