Finding the Fourth Proportional to 28,645,795.62, 39,531,701.97 and 15,593,429.70
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Solution
The fourth proportional to 28,645,795.62, 39,531,701.97 and 15,593,429.70 is: 21,519,207.35
Step by Step Solution
- Step 1: Write the proportion equation
28,645,795.62 : 39,531,701.97 = 15,593,429.70 : x - Step 2: Convert to fraction form
28,645,795.62/39,531,701.97 = 15,593,429.70/x - Step 3: Cross multiply
28,645,795.62x = 39,531,701.97 × 15,593,429.70 - Step 4: Simplify right side
28,645,795.62x = 616,434,815,590,546.50 - Step 5: Solve for x
x = 616,434,815,590,546.50/28,645,795.62 - Step 6: Final answer
x = 21,519,207.35
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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.