Finding the Fourth Proportional to 34,187,986.98, 47,177,553.29 and 18,715,078.62
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Solution
The fourth proportional to 34,187,986.98, 47,177,553.29 and 18,715,078.62 is: 25,825,785.51
Step by Step Solution
- Step 1: Write the proportion equation
34,187,986.98 : 47,177,553.29 = 18,715,078.62 : x - Step 2: Convert to fraction form
34,187,986.98/47,177,553.29 = 18,715,078.62/x - Step 3: Cross multiply
34,187,986.98x = 47,177,553.29 × 18,715,078.62 - Step 4: Simplify right side
34,187,986.98x = 882,931,618,921,589.75 - Step 5: Solve for x
x = 882,931,618,921,589.75/34,187,986.98 - Step 6: Final answer
x = 25,825,785.51
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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.