Finding the Fourth Proportional to 5,427,985.51, 7,490,750.16 and 2,947,310.74
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Solution
The fourth proportional to 5,427,985.51, 7,490,750.16 and 2,947,310.74 is: 4,067,359.49
Step by Step Solution
- Step 1: Write the proportion equation
5,427,985.51 : 7,490,750.16 = 2,947,310.74 : x - Step 2: Convert to fraction form
5,427,985.51/7,490,750.16 = 2,947,310.74/x - Step 3: Cross multiply
5,427,985.51x = 7,490,750.16 × 2,947,310.74 - Step 4: Simplify right side
5,427,985.51x = 22,077,568,397,224.72 - Step 5: Solve for x
x = 22,077,568,397,224.72/5,427,985.51 - Step 6: Final answer
x = 4,067,359.49
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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.