Finding the Fourth Proportional to 7,229,725.09, 9,977,122.42 and 3,966,480.52
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Solution
The fourth proportional to 7,229,725.09, 9,977,122.42 and 3,966,480.52 is: 5,473,798.96
Step by Step Solution
- Step 1: Write the proportion equation
7,229,725.09 : 9,977,122.42 = 3,966,480.52 : x - Step 2: Convert to fraction form
7,229,725.09/9,977,122.42 = 3,966,480.52/x - Step 3: Cross multiply
7,229,725.09x = 9,977,122.42 × 3,966,480.52 - Step 4: Simplify right side
7,229,725.09x = 39,574,061,689,726.25 - Step 5: Solve for x
x = 39,574,061,689,726.25/7,229,725.09 - Step 6: Final answer
x = 5,473,798.96
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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.