Finding the Fourth Proportional to 7,999,643.51, 11,039,425.23 and 4,328,479.09
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Solution
The fourth proportional to 7,999,643.51, 11,039,425.23 and 4,328,479.09 is: 5,973,256.33
Step by Step Solution
- Step 1: Write the proportion equation
7,999,643.51 : 11,039,425.23 = 4,328,479.09 : x - Step 2: Convert to fraction form
7,999,643.51/11,039,425.23 = 4,328,479.09/x - Step 3: Cross multiply
7,999,643.51x = 11,039,425.23 × 4,328,479.09 - Step 4: Simplify right side
7,999,643.51x = 47,783,921,273,673.44 - Step 5: Solve for x
x = 47,783,921,273,673.44/7,999,643.51 - Step 6: Final answer
x = 5,973,256.33
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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.