Finding the Fourth Proportional to 15,918,908.24, 21,968,872.08 and 8,951,778.20
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Solution
The fourth proportional to 15,918,908.24, 21,968,872.08 and 8,951,778.20 is: 12,353,891.81
Step by Step Solution
- Step 1: Write the proportion equation
15,918,908.24 : 21,968,872.08 = 8,951,778.20 : x - Step 2: Convert to fraction form
15,918,908.24/21,968,872.08 = 8,951,778.20/x - Step 3: Cross multiply
15,918,908.24x = 21,968,872.08 × 8,951,778.20 - Step 4: Simplify right side
15,918,908.24x = 196,660,470,164,332.62 - Step 5: Solve for x
x = 196,660,470,164,332.62/15,918,908.24 - Step 6: Final answer
x = 12,353,891.81
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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.