Finding the Fourth Proportional to 12,857,029.05, 17,737,649.09 and 7,347,448.07
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Solution
The fourth proportional to 12,857,029.05, 17,737,649.09 and 7,347,448.07 is: 10,136,591.82
Step by Step Solution
- Step 1: Write the proportion equation
12,857,029.05 : 17,737,649.09 = 7,347,448.07 : x - Step 2: Convert to fraction form
12,857,029.05/17,737,649.09 = 7,347,448.07/x - Step 3: Cross multiply
12,857,029.05x = 17,737,649.09 × 7,347,448.07 - Step 4: Simplify right side
12,857,029.05x = 130,326,455,447,232.28 - Step 5: Solve for x
x = 130,326,455,447,232.28/12,857,029.05 - Step 6: Final answer
x = 10,136,591.82
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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.