Finding the Fourth Proportional to 6,660,120.70, 9,988,430.64 and 2,872,761.58
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Solution
The fourth proportional to 6,660,120.70, 9,988,430.64 and 2,872,761.58 is: 4,308,387.35
Step by Step Solution
- Step 1: Write the proportion equation
6,660,120.70 : 9,988,430.64 = 2,872,761.58 : x - Step 2: Convert to fraction form
6,660,120.70/9,988,430.64 = 2,872,761.58/x - Step 3: Cross multiply
6,660,120.70x = 9,988,430.64 × 2,872,761.58 - Step 4: Simplify right side
6,660,120.70x = 28,694,379,787,086.81 - Step 5: Solve for x
x = 28,694,379,787,086.81/6,660,120.70 - Step 6: Final answer
x = 4,308,387.35
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.