Finding the Fourth Proportional to 18,006,212.65, 27,009,278.56 and 13,913,485.45
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Solution
The fourth proportional to 18,006,212.65, 27,009,278.56 and 13,913,485.45 is: 20,870,196.95
Step by Step Solution
- Step 1: Write the proportion equation
18,006,212.65 : 27,009,278.56 = 13,913,485.45 : x - Step 2: Convert to fraction form
18,006,212.65/27,009,278.56 = 13,913,485.45/x - Step 3: Cross multiply
18,006,212.65x = 27,009,278.56 × 13,913,485.45 - Step 4: Simplify right side
18,006,212.65x = 375,793,204,209,425.62 - Step 5: Solve for x
x = 375,793,204,209,425.62/18,006,212.65 - Step 6: Final answer
x = 20,870,196.95
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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.