Finding the Fourth Proportional to 11,868,297.18, 16,378,936.53 and 6,641,259.72
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Solution
The fourth proportional to 11,868,297.18, 16,378,936.53 and 6,641,259.72 is: 9,165,322.52
Step by Step Solution
- Step 1: Write the proportion equation
11,868,297.18 : 16,378,936.53 = 6,641,259.72 : x - Step 2: Convert to fraction form
11,868,297.18/16,378,936.53 = 6,641,259.72/x - Step 3: Cross multiply
11,868,297.18x = 16,378,936.53 × 6,641,259.72 - Step 4: Simplify right side
11,868,297.18x = 108,776,771,433,125.56 - Step 5: Solve for x
x = 108,776,771,433,125.56/11,868,297.18 - Step 6: Final answer
x = 9,165,322.52
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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.