Finding the Fourth Proportional to 38,537,857.75, 53,177,355.75 and 21,129,622.06
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Solution
The fourth proportional to 38,537,857.75, 53,177,355.75 and 21,129,622.06 is: 29,156,198.47
Step by Step Solution
- Step 1: Write the proportion equation
38,537,857.75 : 53,177,355.75 = 21,129,622.06 : x - Step 2: Convert to fraction form
38,537,857.75/53,177,355.75 = 21,129,622.06/x - Step 3: Cross multiply
38,537,857.75x = 53,177,355.75 × 21,129,622.06 - Step 4: Simplify right side
38,537,857.75x = 1,123,617,429,147,667.75 - Step 5: Solve for x
x = 1,123,617,429,147,667.75/38,537,857.75 - Step 6: Final answer
x = 29,156,198.47
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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.