Finding the Fourth Proportional to 13,511,202.68, 18,646,790.82 and 7,710,857.48
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Solution
The fourth proportional to 13,511,202.68, 18,646,790.82 and 7,710,857.48 is: 10,641,742.99
Step by Step Solution
- Step 1: Write the proportion equation
13,511,202.68 : 18,646,790.82 = 7,710,857.48 : x - Step 2: Convert to fraction form
13,511,202.68/18,646,790.82 = 7,710,857.48/x - Step 3: Cross multiply
13,511,202.68x = 18,646,790.82 × 7,710,857.48 - Step 4: Simplify right side
13,511,202.68x = 143,782,746,472,392.34 - Step 5: Solve for x
x = 143,782,746,472,392.34/13,511,202.68 - Step 6: Final answer
x = 10,641,742.99
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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.