Finding the Fourth Proportional to 13,341,954.29, 18,411,912.66 and 7,230,382.79
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Solution
The fourth proportional to 13,341,954.29, 18,411,912.66 and 7,230,382.79 is: 9,977,936.78
Step by Step Solution
- Step 1: Write the proportion equation
13,341,954.29 : 18,411,912.66 = 7,230,382.79 : x - Step 2: Convert to fraction form
13,341,954.29/18,411,912.66 = 7,230,382.79/x - Step 3: Cross multiply
13,341,954.29x = 18,411,912.66 × 7,230,382.79 - Step 4: Simplify right side
13,341,954.29x = 133,125,176,427,847.12 - Step 5: Solve for x
x = 133,125,176,427,847.12/13,341,954.29 - Step 6: Final answer
x = 9,977,936.78
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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.