Finding the Fourth Proportional to 6,131,490.66, 8,461,678.80 and 3,809,663.46
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Solution
The fourth proportional to 6,131,490.66, 8,461,678.80 and 3,809,663.46 is: 5,257,473.32
Step by Step Solution
- Step 1: Write the proportion equation
6,131,490.66 : 8,461,678.80 = 3,809,663.46 : x - Step 2: Convert to fraction form
6,131,490.66/8,461,678.80 = 3,809,663.46/x - Step 3: Cross multiply
6,131,490.66x = 8,461,678.80 × 3,809,663.46 - Step 4: Simplify right side
6,131,490.66x = 32,236,148,534,616.65 - Step 5: Solve for x
x = 32,236,148,534,616.65/6,131,490.66 - Step 6: Final answer
x = 5,257,473.32
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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.