Finding the Fourth Proportional to 27,725,486.20, 38,260,998.66 and 15,335,357.68
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Solution
The fourth proportional to 27,725,486.20, 38,260,998.66 and 15,335,357.68 is: 21,162,698.30
Step by Step Solution
- Step 1: Write the proportion equation
27,725,486.20 : 38,260,998.66 = 15,335,357.68 : x - Step 2: Convert to fraction form
27,725,486.20/38,260,998.66 = 15,335,357.68/x - Step 3: Cross multiply
27,725,486.20x = 38,260,998.66 × 15,335,357.68 - Step 4: Simplify right side
27,725,486.20x = 586,746,099,645,100.62 - Step 5: Solve for x
x = 586,746,099,645,100.62/27,725,486.20 - Step 6: Final answer
x = 21,162,698.30
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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.