Finding the Fourth Proportional to 18,602,198.88, 27,903,823.20 and 5,139,026.88
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Solution
The fourth proportional to 18,602,198.88, 27,903,823.20 and 5,139,026.88 is: 7,708,685.32
Step by Step Solution
- Step 1: Write the proportion equation
18,602,198.88 : 27,903,823.20 = 5,139,026.88 : x - Step 2: Convert to fraction form
18,602,198.88/27,903,823.20 = 5,139,026.88/x - Step 3: Cross multiply
18,602,198.88x = 27,903,823.20 × 5,139,026.88 - Step 4: Simplify right side
18,602,198.88x = 143,398,497,479,567.59 - Step 5: Solve for x
x = 143,398,497,479,567.59/18,602,198.88 - Step 6: Final answer
x = 7,708,685.32
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.