Finding the Fourth Proportional to 20,242,529.27, 27,905,636.07 and 14,431,221.94
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Solution
The fourth proportional to 20,242,529.27, 27,905,636.07 and 14,431,221.94 is: 19,894,372.98
Step by Step Solution
- Step 1: Write the proportion equation
20,242,529.27 : 27,905,636.07 = 14,431,221.94 : x - Step 2: Convert to fraction form
20,242,529.27/27,905,636.07 = 14,431,221.94/x - Step 3: Cross multiply
20,242,529.27x = 27,905,636.07 × 14,431,221.94 - Step 4: Simplify right side
20,242,529.27x = 402,712,427,433,275.31 - Step 5: Solve for x
x = 402,712,427,433,275.31/20,242,529.27 - Step 6: Final answer
x = 19,894,372.98
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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.