Finding the Fourth Proportional to 6,440,051.64, 8,883,721.26 and 5,230,728.12
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Solution
The fourth proportional to 6,440,051.64, 8,883,721.26 and 5,230,728.12 is: 7,215,521.43
Step by Step Solution
- Step 1: Write the proportion equation
6,440,051.64 : 8,883,721.26 = 5,230,728.12 : x - Step 2: Convert to fraction form
6,440,051.64/8,883,721.26 = 5,230,728.12/x - Step 3: Cross multiply
6,440,051.64x = 8,883,721.26 × 5,230,728.12 - Step 4: Simplify right side
6,440,051.64x = 46,468,330,604,923.83 - Step 5: Solve for x
x = 46,468,330,604,923.83/6,440,051.64 - Step 6: Final answer
x = 7,215,521.43
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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.