Finding the Fourth Proportional to 20,150,146.15, 27,806,893.11 and 11,329,605.18
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Solution
The fourth proportional to 20,150,146.15, 27,806,893.11 and 11,329,605.18 is: 15,634,681.65
Step by Step Solution
- Step 1: Write the proportion equation
20,150,146.15 : 27,806,893.11 = 11,329,605.18 : x - Step 2: Convert to fraction form
20,150,146.15/27,806,893.11 = 11,329,605.18/x - Step 3: Cross multiply
20,150,146.15x = 27,806,893.11 × 11,329,605.18 - Step 4: Simplify right side
20,150,146.15x = 315,041,120,218,762.31 - Step 5: Solve for x
x = 315,041,120,218,762.31/20,150,146.15 - Step 6: Final answer
x = 15,634,681.65
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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.