Finding the Fourth Proportional to 20,172,373.68, 27,837,743.58 and 11,470,546.92
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Solution
The fourth proportional to 20,172,373.68, 27,837,743.58 and 11,470,546.92 is: 15,829,279.63
Step by Step Solution
- Step 1: Write the proportion equation
20,172,373.68 : 27,837,743.58 = 11,470,546.92 : x - Step 2: Convert to fraction form
20,172,373.68/27,837,743.58 = 11,470,546.92/x - Step 3: Cross multiply
20,172,373.68x = 27,837,743.58 × 11,470,546.92 - Step 4: Simplify right side
20,172,373.68x = 319,314,143,881,318.75 - Step 5: Solve for x
x = 319,314,143,881,318.75/20,172,373.68 - Step 6: Final answer
x = 15,829,279.63
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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.