Finding the Fourth Proportional to 21,352,397.73, 32,021,972.42 and 7,703,770.56
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Solution
The fourth proportional to 21,352,397.73, 32,021,972.42 and 7,703,770.56 is: 11,553,265.89
Step by Step Solution
- Step 1: Write the proportion equation
21,352,397.73 : 32,021,972.42 = 7,703,770.56 : x - Step 2: Convert to fraction form
21,352,397.73/32,021,972.42 = 7,703,770.56/x - Step 3: Cross multiply
21,352,397.73x = 32,021,972.42 × 7,703,770.56 - Step 4: Simplify right side
21,352,397.73x = 246,689,928,363,809.09 - Step 5: Solve for x
x = 246,689,928,363,809.09/21,352,397.73 - Step 6: Final answer
x = 11,553,265.89
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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.