Finding the Fourth Proportional to 13,163,529.71, 18,165,566.40 and 7,362,306.87
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Solution
The fourth proportional to 13,163,529.71, 18,165,566.40 and 7,362,306.87 is: 10,159,924.98
Step by Step Solution
- Step 1: Write the proportion equation
13,163,529.71 : 18,165,566.40 = 7,362,306.87 : x - Step 2: Convert to fraction form
13,163,529.71/18,165,566.40 = 7,362,306.87/x - Step 3: Cross multiply
13,163,529.71x = 18,165,566.40 × 7,362,306.87 - Step 4: Simplify right side
13,163,529.71x = 133,740,474,304,161.16 - Step 5: Solve for x
x = 133,740,474,304,161.16/13,163,529.71 - Step 6: Final answer
x = 10,159,924.98
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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.