Finding the Fourth Proportional to 18,455,909.66, 27,680,106.61 and 6,780,268.19
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Solution
The fourth proportional to 18,455,909.66, 27,680,106.61 and 6,780,268.19 is: 10,169,021.73
Step by Step Solution
- Step 1: Write the proportion equation
18,455,909.66 : 27,680,106.61 = 6,780,268.19 : x - Step 2: Convert to fraction form
18,455,909.66/27,680,106.61 = 6,780,268.19/x - Step 3: Cross multiply
18,455,909.66x = 27,680,106.61 × 6,780,268.19 - Step 4: Simplify right side
18,455,909.66x = 187,678,546,421,267.31 - Step 5: Solve for x
x = 187,678,546,421,267.31/18,455,909.66 - Step 6: Final answer
x = 10,169,021.73
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.