Finding the Fourth Proportional to 8,122,964.51, 11,203,233.12 and 6,903,307.42
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Solution
The fourth proportional to 8,122,964.51, 11,203,233.12 and 6,903,307.42 is: 9,521,075.98
Step by Step Solution
- Step 1: Write the proportion equation
8,122,964.51 : 11,203,233.12 = 6,903,307.42 : x - Step 2: Convert to fraction form
8,122,964.51/11,203,233.12 = 6,903,307.42/x - Step 3: Cross multiply
8,122,964.51x = 11,203,233.12 × 6,903,307.42 - Step 4: Simplify right side
8,122,964.51x = 77,339,362,297,277.67 - Step 5: Solve for x
x = 77,339,362,297,277.67/8,122,964.51 - Step 6: Final answer
x = 9,521,075.98
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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.