Finding the Fourth Proportional to 11,431,011.67, 15,787,888.41 and 7,528,214.19
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Solution
The fourth proportional to 11,431,011.67, 15,787,888.41 and 7,528,214.19 is: 10,397,557.89
Step by Step Solution
- Step 1: Write the proportion equation
11,431,011.67 : 15,787,888.41 = 7,528,214.19 : x - Step 2: Convert to fraction form
11,431,011.67/15,787,888.41 = 7,528,214.19/x - Step 3: Cross multiply
11,431,011.67x = 15,787,888.41 × 7,528,214.19 - Step 4: Simplify right side
11,431,011.67x = 118,854,605,558,298.55 - Step 5: Solve for x
x = 118,854,605,558,298.55/11,431,011.67 - Step 6: Final answer
x = 10,397,557.89
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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.