Finding the Fourth Proportional to 11,421,665.03, 15,759,716.86 and 6,528,438.56
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Solution
The fourth proportional to 11,421,665.03, 15,759,716.86 and 6,528,438.56 is: 9,007,998.66
Step by Step Solution
- Step 1: Write the proportion equation
11,421,665.03 : 15,759,716.86 = 6,528,438.56 : x - Step 2: Convert to fraction form
11,421,665.03/15,759,716.86 = 6,528,438.56/x - Step 3: Cross multiply
11,421,665.03x = 15,759,716.86 × 6,528,438.56 - Step 4: Simplify right side
11,421,665.03x = 102,886,343,243,506.11 - Step 5: Solve for x
x = 102,886,343,243,506.11/11,421,665.03 - Step 6: Final answer
x = 9,007,998.66
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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.