Finding the Fourth Proportional to 15,853,198.68, 21,877,290.90 and 8,609,854.68
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Solution
The fourth proportional to 15,853,198.68, 21,877,290.90 and 8,609,854.68 is: 11,881,532.51
Step by Step Solution
- Step 1: Write the proportion equation
15,853,198.68 : 21,877,290.90 = 8,609,854.68 : x - Step 2: Convert to fraction form
15,853,198.68/21,877,290.90 = 8,609,854.68/x - Step 3: Cross multiply
15,853,198.68x = 21,877,290.90 × 8,609,854.68 - Step 4: Simplify right side
15,853,198.68x = 188,360,295,441,086.41 - Step 5: Solve for x
x = 188,360,295,441,086.41/15,853,198.68 - Step 6: Final answer
x = 11,881,532.51
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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.