Finding the Fourth Proportional to 22,556,542.68, 31,127,191.38 and 12,243,043.80
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Solution
The fourth proportional to 22,556,542.68, 31,127,191.38 and 12,243,043.80 is: 16,894,945.86
Step by Step Solution
- Step 1: Write the proportion equation
22,556,542.68 : 31,127,191.38 = 12,243,043.80 : x - Step 2: Convert to fraction form
22,556,542.68/31,127,191.38 = 12,243,043.80/x - Step 3: Cross multiply
22,556,542.68x = 31,127,191.38 × 12,243,043.80 - Step 4: Simplify right side
22,556,542.68x = 381,091,567,436,322.44 - Step 5: Solve for x
x = 381,091,567,436,322.44/22,556,542.68 - Step 6: Final answer
x = 16,894,945.86
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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.