Finding the Fourth Proportional to 11,431,012.17, 15,787,889.10 and 7,528,214.70
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Solution
The fourth proportional to 11,431,012.17, 15,787,889.10 and 7,528,214.70 is: 10,397,558.59
Step by Step Solution
- Step 1: Write the proportion equation
11,431,012.17 : 15,787,889.10 = 7,528,214.70 : x - Step 2: Convert to fraction form
11,431,012.17/15,787,889.10 = 7,528,214.70/x - Step 3: Cross multiply
11,431,012.17x = 15,787,889.10 × 7,528,214.70 - Step 4: Simplify right side
11,431,012.17x = 118,854,618,804,589.77 - Step 5: Solve for x
x = 118,854,618,804,589.77/11,431,012.17 - Step 6: Final answer
x = 10,397,558.59
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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.