Finding the Fourth Proportional to 13,166,880.98, 18,169,564.84 and 7,364,541.70
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Solution
The fourth proportional to 13,166,880.98, 18,169,564.84 and 7,364,541.70 is: 10,162,658.73
Step by Step Solution
- Step 1: Write the proportion equation
13,166,880.98 : 18,169,564.84 = 7,364,541.70 : x - Step 2: Convert to fraction form
13,166,880.98/18,169,564.84 = 7,364,541.70/x - Step 3: Cross multiply
13,166,880.98x = 18,169,564.84 × 7,364,541.70 - Step 4: Simplify right side
13,166,880.98x = 133,810,517,935,033.83 - Step 5: Solve for x
x = 133,810,517,935,033.83/13,166,880.98 - Step 6: Final answer
x = 10,162,658.73
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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.