Finding the Fourth Proportional to 13,563,166.08, 18,717,185.42 and 7,368,216.88
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Solution
The fourth proportional to 13,563,166.08, 18,717,185.42 and 7,368,216.88 is: 10,168,148.11
Step by Step Solution
- Step 1: Write the proportion equation
13,563,166.08 : 18,717,185.42 = 7,368,216.88 : x - Step 2: Convert to fraction form
13,563,166.08/18,717,185.42 = 7,368,216.88/x - Step 3: Cross multiply
13,563,166.08x = 18,717,185.42 × 7,368,216.88 - Step 4: Simplify right side
13,563,166.08x = 137,912,281,557,733.91 - Step 5: Solve for x
x = 137,912,281,557,733.91/13,563,166.08 - Step 6: Final answer
x = 10,168,148.11
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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.