Finding the Fourth Proportional to 279,859,204.08, 386,217,382.37 and 154,419,537.33
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Solution
The fourth proportional to 279,859,204.08, 386,217,382.37 and 154,419,537.33 is: 213,105,406.66
Step by Step Solution
- Step 1: Write the proportion equation
279,859,204.08 : 386,217,382.37 = 154,419,537.33 : x - Step 2: Convert to fraction form
279,859,204.08/386,217,382.37 = 154,419,537.33/x - Step 3: Cross multiply
279,859,204.08x = 386,217,382.37 × 154,419,537.33 - Step 4: Simplify right side
279,859,204.08x = 59,639,509,493,607,008 - Step 5: Solve for x
x = 59,639,509,493,607,008/279,859,204.08 - Step 6: Final answer
x = 213,105,406.66
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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.