Finding the Fourth Proportional to 27,645,213.12, 38,169,283.68 and 17,879,294.40
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Solution
The fourth proportional to 27,645,213.12, 38,169,283.68 and 17,879,294.40 is: 24,685,642.94
Step by Step Solution
- Step 1: Write the proportion equation
27,645,213.12 : 38,169,283.68 = 17,879,294.40 : x - Step 2: Convert to fraction form
27,645,213.12/38,169,283.68 = 17,879,294.40/x - Step 3: Cross multiply
27,645,213.12x = 38,169,283.68 × 17,879,294.40 - Step 4: Simplify right side
27,645,213.12x = 682,439,859,951,835.38 - Step 5: Solve for x
x = 682,439,859,951,835.38/27,645,213.12 - Step 6: Final answer
x = 24,685,642.94
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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.