Finding the Fourth Proportional to 13,106,069.37, 18,086,459.67 and 7,305,218.91
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Solution
The fourth proportional to 13,106,069.37, 18,086,459.67 and 7,305,218.91 is: 10,081,248.88
Step by Step Solution
- Step 1: Write the proportion equation
13,106,069.37 : 18,086,459.67 = 7,305,218.91 : x - Step 2: Convert to fraction form
13,106,069.37/18,086,459.67 = 7,305,218.91/x - Step 3: Cross multiply
13,106,069.37x = 18,086,459.67 × 7,305,218.91 - Step 4: Simplify right side
13,106,069.37x = 132,125,547,196,236.38 - Step 5: Solve for x
x = 132,125,547,196,236.38/13,106,069.37 - Step 6: Final answer
x = 10,081,248.88
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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.