Finding the Fourth Proportional to 19,688,755.94, 27,169,027.92 and 11,427,484.84
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Solution
The fourth proportional to 19,688,755.94, 27,169,027.92 and 11,427,484.84 is: 15,769,084.43
Step by Step Solution
- Step 1: Write the proportion equation
19,688,755.94 : 27,169,027.92 = 11,427,484.84 : x - Step 2: Convert to fraction form
19,688,755.94/27,169,027.92 = 11,427,484.84/x - Step 3: Cross multiply
19,688,755.94x = 27,169,027.92 × 11,427,484.84 - Step 4: Simplify right side
19,688,755.94x = 310,473,654,673,336.75 - Step 5: Solve for x
x = 310,473,654,673,336.75/19,688,755.94 - Step 6: Final answer
x = 15,769,084.43
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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.