Finding the Fourth Proportional to 6,442,157.07, 8,890,346.61 and 3,541,621.05
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Solution
The fourth proportional to 6,442,157.07, 8,890,346.61 and 3,541,621.05 is: 4,887,530.43
Step by Step Solution
- Step 1: Write the proportion equation
6,442,157.07 : 8,890,346.61 = 3,541,621.05 : x - Step 2: Convert to fraction form
6,442,157.07/8,890,346.61 = 3,541,621.05/x - Step 3: Cross multiply
6,442,157.07x = 8,890,346.61 × 3,541,621.05 - Step 4: Simplify right side
6,442,157.07x = 31,486,238,695,772.14 - Step 5: Solve for x
x = 31,486,238,695,772.14/6,442,157.07 - Step 6: Final answer
x = 4,887,530.43
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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.