Finding the Fourth Proportional to 27,703,078.87, 38,230,257.10 and 15,144,188.09
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Solution
The fourth proportional to 27,703,078.87, 38,230,257.10 and 15,144,188.09 is: 20,898,984.08
Step by Step Solution
- Step 1: Write the proportion equation
27,703,078.87 : 38,230,257.10 = 15,144,188.09 : x - Step 2: Convert to fraction form
27,703,078.87/38,230,257.10 = 15,144,188.09/x - Step 3: Cross multiply
27,703,078.87x = 38,230,257.10 × 15,144,188.09 - Step 4: Simplify right side
27,703,078.87x = 578,966,204,251,458 - Step 5: Solve for x
x = 578,966,204,251,458/27,703,078.87 - Step 6: Final answer
x = 20,898,984.08
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1.5x scale
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.