Finding the Fourth Proportional to 20,187,035.14, 27,857,749.08 and 11,485,020.46
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Solution
The fourth proportional to 20,187,035.14, 27,857,749.08 and 11,485,020.46 is: 15,849,123.75
Step by Step Solution
- Step 1: Write the proportion equation
20,187,035.14 : 27,857,749.08 = 11,485,020.46 : x - Step 2: Convert to fraction form
20,187,035.14/27,857,749.08 = 11,485,020.46/x - Step 3: Cross multiply
20,187,035.14x = 27,857,749.08 × 11,485,020.46 - Step 4: Simplify right side
20,187,035.14x = 319,946,818,153,346.19 - Step 5: Solve for x
x = 319,946,818,153,346.19/20,187,035.14 - Step 6: Final answer
x = 15,849,123.75
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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.