Finding the Fourth Proportional to 10,689,955.46, 14,757,862.33 and 8,361,901.70
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Solution
The fourth proportional to 10,689,955.46, 14,757,862.33 and 8,361,901.70 is: 11,543,901.62
Step by Step Solution
- Step 1: Write the proportion equation
10,689,955.46 : 14,757,862.33 = 8,361,901.70 : x - Step 2: Convert to fraction form
10,689,955.46/14,757,862.33 = 8,361,901.70/x - Step 3: Cross multiply
10,689,955.46x = 14,757,862.33 × 8,361,901.70 - Step 4: Simplify right side
10,689,955.46x = 123,403,794,180,608.05 - Step 5: Solve for x
x = 123,403,794,180,608.05/10,689,955.46 - Step 6: Final answer
x = 11,543,901.62
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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.