Finding the Fourth Proportional to 128,682,252.26, 177,582,696.93 and 69,945,055.58
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Solution
The fourth proportional to 128,682,252.26, 177,582,696.93 and 69,945,055.58 is: 96,524,822.88
Step by Step Solution
- Step 1: Write the proportion equation
128,682,252.26 : 177,582,696.93 = 69,945,055.58 : x - Step 2: Convert to fraction form
128,682,252.26/177,582,696.93 = 69,945,055.58/x - Step 3: Cross multiply
128,682,252.26x = 177,582,696.93 × 69,945,055.58 - Step 4: Simplify right side
128,682,252.26x = 12,421,031,606,815,146 - Step 5: Solve for x
x = 12,421,031,606,815,146/128,682,252.26 - Step 6: Final answer
x = 96,524,822.88
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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.