Finding the Fourth Proportional to 7,295,276.76, 10,062,260.56 and 5,120,305.26
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Solution
The fourth proportional to 7,295,276.76, 10,062,260.56 and 5,120,305.26 is: 7,062,356.56
Step by Step Solution
- Step 1: Write the proportion equation
7,295,276.76 : 10,062,260.56 = 5,120,305.26 : x - Step 2: Convert to fraction form
7,295,276.76/10,062,260.56 = 5,120,305.26/x - Step 3: Cross multiply
7,295,276.76x = 10,062,260.56 × 5,120,305.26 - Step 4: Simplify right side
7,295,276.76x = 51,521,845,672,858.55 - Step 5: Solve for x
x = 51,521,845,672,858.55/7,295,276.76 - Step 6: Final answer
x = 7,062,356.56
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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.