Finding the Fourth Proportional to 11,431,014.84, 15,787,892.74 and 7,528,217.36
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Solution
The fourth proportional to 11,431,014.84, 15,787,892.74 and 7,528,217.36 is: 10,397,562.23
Step by Step Solution
- Step 1: Write the proportion equation
11,431,014.84 : 15,787,892.74 = 7,528,217.36 : x - Step 2: Convert to fraction form
11,431,014.84/15,787,892.74 = 7,528,217.36/x - Step 3: Cross multiply
11,431,014.84x = 15,787,892.74 × 7,528,217.36 - Step 4: Simplify right side
11,431,014.84x = 118,854,688,203,085.97 - Step 5: Solve for x
x = 118,854,688,203,085.97/11,431,014.84 - Step 6: Final answer
x = 10,397,562.23
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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.