Finding the Fourth Proportional to 18,918,299.04, 28,381,645.68 and 5,454,076.32
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Solution
The fourth proportional to 18,918,299.04, 28,381,645.68 and 5,454,076.32 is: 8,182,324.49
Step by Step Solution
- Step 1: Write the proportion equation
18,918,299.04 : 28,381,645.68 = 5,454,076.32 : x - Step 2: Convert to fraction form
18,918,299.04/28,381,645.68 = 5,454,076.32/x - Step 3: Cross multiply
18,918,299.04x = 28,381,645.68 × 5,454,076.32 - Step 4: Simplify right side
18,918,299.04x = 154,795,661,625,918.31 - Step 5: Solve for x
x = 154,795,661,625,918.31/18,918,299.04 - Step 6: Final answer
x = 8,182,324.49
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.