Finding the Fourth Proportional to 18,435,629.80, 27,653,444.70 and 8,869,691.80
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Solution
The fourth proportional to 18,435,629.80, 27,653,444.70 and 8,869,691.80 is: 13,304,537.70
Step by Step Solution
- Step 1: Write the proportion equation
18,435,629.80 : 27,653,444.70 = 8,869,691.80 : x - Step 2: Convert to fraction form
18,435,629.80/27,653,444.70 = 8,869,691.80/x - Step 3: Cross multiply
18,435,629.80x = 27,653,444.70 × 8,869,691.80 - Step 4: Simplify right side
18,435,629.80x = 245,277,531,697,343.47 - Step 5: Solve for x
x = 245,277,531,697,343.47/18,435,629.80 - Step 6: Final answer
x = 13,304,537.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.