Finding the Fourth Proportional to 11,717,991, 16,168,212.27 and 7,072,529.58
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Solution
The fourth proportional to 11,717,991, 16,168,212.27 and 7,072,529.58 is: 9,758,512.32
Step by Step Solution
- Step 1: Write the proportion equation
11,717,991 : 16,168,212.27 = 7,072,529.58 : x - Step 2: Convert to fraction form
11,717,991/16,168,212.27 = 7,072,529.58/x - Step 3: Cross multiply
11,717,991x = 16,168,212.27 × 7,072,529.58 - Step 4: Simplify right side
11,717,991x = 114,350,159,535,293.94 - Step 5: Solve for x
x = 114,350,159,535,293.94/11,717,991 - Step 6: Final answer
x = 9,758,512.32
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1.5x scale
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.