Finding the Fourth Proportional to 13,319,260.25, 18,380,579.16 and 7,207,688.75
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Solution
The fourth proportional to 13,319,260.25, 18,380,579.16 and 7,207,688.75 is: 9,946,610.48
Step by Step Solution
- Step 1: Write the proportion equation
13,319,260.25 : 18,380,579.16 = 7,207,688.75 : x - Step 2: Convert to fraction form
13,319,260.25/18,380,579.16 = 7,207,688.75/x - Step 3: Cross multiply
13,319,260.25x = 18,380,579.16 × 7,207,688.75 - Step 4: Simplify right side
13,319,260.25x = 132,481,493,630,016.45 - Step 5: Solve for x
x = 132,481,493,630,016.45/13,319,260.25 - Step 6: Final answer
x = 9,946,610.48
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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.