Finding the Fourth Proportional to 5,620,926.75, 7,757,929.76 and 3,206,478.75
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Solution
The fourth proportional to 5,620,926.75, 7,757,929.76 and 3,206,478.75 is: 4,425,540.13
Step by Step Solution
- Step 1: Write the proportion equation
5,620,926.75 : 7,757,929.76 = 3,206,478.75 : x - Step 2: Convert to fraction form
5,620,926.75/7,757,929.76 = 3,206,478.75/x - Step 3: Cross multiply
5,620,926.75x = 7,757,929.76 × 3,206,478.75 - Step 4: Simplify right side
5,620,926.75x = 24,875,636,903,400.21 - Step 5: Solve for x
x = 24,875,636,903,400.21/5,620,926.75 - Step 6: Final answer
x = 4,425,540.13
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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.