Finding the Fourth Proportional to 14,318,065.63, 19,758,933.80 and 7,879,537.63
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Solution
The fourth proportional to 14,318,065.63, 19,758,933.80 and 7,879,537.63 is: 10,873,763.71
Step by Step Solution
- Step 1: Write the proportion equation
14,318,065.63 : 19,758,933.80 = 7,879,537.63 : x - Step 2: Convert to fraction form
14,318,065.63/19,758,933.80 = 7,879,537.63/x - Step 3: Cross multiply
14,318,065.63x = 19,758,933.80 × 7,879,537.63 - Step 4: Simplify right side
14,318,065.63x = 155,691,262,405,778.91 - Step 5: Solve for x
x = 155,691,262,405,778.91/14,318,065.63 - Step 6: Final answer
x = 10,873,763.71
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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.