Finding the Fourth Proportional to 12,248,939.19, 18,361,057.71 and 7,703,236.62
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Solution
The fourth proportional to 12,248,939.19, 18,361,057.71 and 7,703,236.62 is: 11,547,087.46
Step by Step Solution
- Step 1: Write the proportion equation
12,248,939.19 : 18,361,057.71 = 7,703,236.62 : x - Step 2: Convert to fraction form
12,248,939.19/18,361,057.71 = 7,703,236.62/x - Step 3: Cross multiply
12,248,939.19x = 18,361,057.71 × 7,703,236.62 - Step 4: Simplify right side
12,248,939.19x = 141,439,572,133,605.34 - Step 5: Solve for x
x = 141,439,572,133,605.34/12,248,939.19 - Step 6: Final answer
x = 11,547,087.46
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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.