Finding the Fourth Proportional to 38,845,509.05, 53,606,807.84 and 21,441,857.96
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Solution
The fourth proportional to 38,845,509.05, 53,606,807.84 and 21,441,857.96 is: 29,589,766.94
Step by Step Solution
- Step 1: Write the proportion equation
38,845,509.05 : 53,606,807.84 = 21,441,857.96 : x - Step 2: Convert to fraction form
38,845,509.05/53,606,807.84 = 21,441,857.96/x - Step 3: Cross multiply
38,845,509.05x = 53,606,807.84 × 21,441,857.96 - Step 4: Simplify right side
38,845,509.05x = 1,149,429,559,581,916 - Step 5: Solve for x
x = 1,149,429,559,581,916/38,845,509.05 - Step 6: Final answer
x = 29,589,766.94
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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.