Finding the Fourth Proportional to 38,985,629.86, 53,798,424.99 and 21,580,745.14
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Solution
The fourth proportional to 38,985,629.86, 53,798,424.99 and 21,580,745.14 is: 29,780,462.77
Step by Step Solution
- Step 1: Write the proportion equation
38,985,629.86 : 53,798,424.99 = 21,580,745.14 : x - Step 2: Convert to fraction form
38,985,629.86/53,798,424.99 = 21,580,745.14/x - Step 3: Cross multiply
38,985,629.86x = 53,798,424.99 × 21,580,745.14 - Step 4: Simplify right side
38,985,629.86x = 1,161,010,098,642,597.25 - Step 5: Solve for x
x = 1,161,010,098,642,597.25/38,985,629.86 - Step 6: Final answer
x = 29,780,462.77
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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.