Finding the Fourth Proportional to 13,760,553.11, 18,988,440.17 and 8,101,753.08
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Solution
The fourth proportional to 13,760,553.11, 18,988,440.17 and 8,101,753.08 is: 11,179,757.99
Step by Step Solution
- Step 1: Write the proportion equation
13,760,553.11 : 18,988,440.17 = 8,101,753.08 : x - Step 2: Convert to fraction form
13,760,553.11/18,988,440.17 = 8,101,753.08/x - Step 3: Cross multiply
13,760,553.11x = 18,988,440.17 × 8,101,753.08 - Step 4: Simplify right side
13,760,553.11x = 153,839,653,651,947.59 - Step 5: Solve for x
x = 153,839,653,651,947.59/13,760,553.11 - Step 6: Final answer
x = 11,179,757.99
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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.