Finding the Fourth Proportional to 12,186,654.28, 16,817,786.15 and 6,605,078.99
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Solution
The fourth proportional to 12,186,654.28, 16,817,786.15 and 6,605,078.99 is: 9,115,119.16
Step by Step Solution
- Step 1: Write the proportion equation
12,186,654.28 : 16,817,786.15 = 6,605,078.99 : x - Step 2: Convert to fraction form
12,186,654.28/16,817,786.15 = 6,605,078.99/x - Step 3: Cross multiply
12,186,654.28x = 16,817,786.15 × 6,605,078.99 - Step 4: Simplify right side
12,186,654.28x = 111,082,805,899,120.83 - Step 5: Solve for x
x = 111,082,805,899,120.83/12,186,654.28 - Step 6: Final answer
x = 9,115,119.16
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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.