Finding the Fourth Proportional to 5,656,316.28, 7,805,880.72 and 3,078,163.32
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Solution
The fourth proportional to 5,656,316.28, 7,805,880.72 and 3,078,163.32 is: 4,247,954.77
Step by Step Solution
- Step 1: Write the proportion equation
5,656,316.28 : 7,805,880.72 = 3,078,163.32 : x - Step 2: Convert to fraction form
5,656,316.28/7,805,880.72 = 3,078,163.32/x - Step 3: Cross multiply
5,656,316.28x = 7,805,880.72 × 3,078,163.32 - Step 4: Simplify right side
5,656,316.28x = 24,027,775,712,599.19 - Step 5: Solve for x
x = 24,027,775,712,599.19/5,656,316.28 - Step 6: Final answer
x = 4,247,954.77
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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.