Finding the Fourth Proportional to 13,319,276.58, 18,380,601.70 and 7,207,705.08
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Solution
The fourth proportional to 13,319,276.58, 18,380,601.70 and 7,207,705.08 is: 9,946,633.02
Step by Step Solution
- Step 1: Write the proportion equation
13,319,276.58 : 18,380,601.70 = 7,207,705.08 : x - Step 2: Convert to fraction form
13,319,276.58/18,380,601.70 = 7,207,705.08/x - Step 3: Cross multiply
13,319,276.58x = 18,380,601.70 × 7,207,705.08 - Step 4: Simplify right side
13,319,276.58x = 132,481,956,246,546.62 - Step 5: Solve for x
x = 132,481,956,246,546.62/13,319,276.58 - Step 6: Final answer
x = 9,946,633.02
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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.