Finding the Fourth Proportional to 29,079,850.45, 40,129,672.99 and 15,849,146.53
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Solution
The fourth proportional to 29,079,850.45, 40,129,672.99 and 15,849,146.53 is: 21,871,538.45
Step by Step Solution
- Step 1: Write the proportion equation
29,079,850.45 : 40,129,672.99 = 15,849,146.53 : x - Step 2: Convert to fraction form
29,079,850.45/40,129,672.99 = 15,849,146.53/x - Step 3: Cross multiply
29,079,850.45x = 40,129,672.99 × 15,849,146.53 - Step 4: Simplify right side
29,079,850.45x = 636,021,067,189,420.62 - Step 5: Solve for x
x = 636,021,067,189,420.62/29,079,850.45 - Step 6: Final answer
x = 21,871,538.45
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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.