Finding the Fourth Proportional to 20,147,737.16, 27,803,970.90 and 11,446,387.09
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Solution
The fourth proportional to 20,147,737.16, 27,803,970.90 and 11,446,387.09 is: 15,796,067.37
Step by Step Solution
- Step 1: Write the proportion equation
20,147,737.16 : 27,803,970.90 = 11,446,387.09 : x - Step 2: Convert to fraction form
20,147,737.16/27,803,970.90 = 11,446,387.09/x - Step 3: Cross multiply
20,147,737.16x = 27,803,970.90 × 11,446,387.09 - Step 4: Simplify right side
20,147,737.16x = 318,255,013,490,985.75 - Step 5: Solve for x
x = 318,255,013,490,985.75/20,147,737.16 - Step 6: Final answer
x = 15,796,067.37
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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.