Finding the Fourth Proportional to 7,879,201.02, 10,878,357.11 and 4,943,042.96
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Solution
The fourth proportional to 7,879,201.02, 10,878,357.11 and 4,943,042.96 is: 6,824,573.50
Step by Step Solution
- Step 1: Write the proportion equation
7,879,201.02 : 10,878,357.11 = 4,943,042.96 : x - Step 2: Convert to fraction form
7,879,201.02/10,878,357.11 = 4,943,042.96/x - Step 3: Cross multiply
7,879,201.02x = 10,878,357.11 × 4,943,042.96 - Step 4: Simplify right side
7,879,201.02x = 53,772,186,449,844.45 - Step 5: Solve for x
x = 53,772,186,449,844.45/7,879,201.02 - Step 6: Final answer
x = 6,824,573.50
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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.