Finding the Fourth Proportional to 15,048,749.91, 20,767,381.16 and 8,173,231.97
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Solution
The fourth proportional to 15,048,749.91, 20,767,381.16 and 8,173,231.97 is: 11,279,117.84
Step by Step Solution
- Step 1: Write the proportion equation
15,048,749.91 : 20,767,381.16 = 8,173,231.97 : x - Step 2: Convert to fraction form
15,048,749.91/20,767,381.16 = 8,173,231.97/x - Step 3: Cross multiply
15,048,749.91x = 20,767,381.16 × 8,173,231.97 - Step 4: Simplify right side
15,048,749.91x = 169,736,623,630,087.69 - Step 5: Solve for x
x = 169,736,623,630,087.69/15,048,749.91 - Step 6: Final answer
x = 11,279,117.84
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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.