Finding the Fourth Proportional to 5,168,152.09, 7,751,636.61 and 1,381,930.21
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Solution
The fourth proportional to 5,168,152.09, 7,751,636.61 and 1,381,930.21 is: 2,072,737.14
Step by Step Solution
- Step 1: Write the proportion equation
5,168,152.09 : 7,751,636.61 = 1,381,930.21 : x - Step 2: Convert to fraction form
5,168,152.09/7,751,636.61 = 1,381,930.21/x - Step 3: Cross multiply
5,168,152.09x = 7,751,636.61 × 1,381,930.21 - Step 4: Simplify right side
5,168,152.09x = 10,712,220,769,205.34 - Step 5: Solve for x
x = 10,712,220,769,205.34/5,168,152.09 - Step 6: Final answer
x = 2,072,737.14
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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.