Finding the Fourth Proportional to 16,129,749.38, 22,258,987.44 and 8,787,559.97
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Solution
The fourth proportional to 16,129,749.38, 22,258,987.44 and 8,787,559.97 is: 12,126,796.42
Step by Step Solution
- Step 1: Write the proportion equation
16,129,749.38 : 22,258,987.44 = 8,787,559.97 : x - Step 2: Convert to fraction form
16,129,749.38/22,258,987.44 = 8,787,559.97/x - Step 3: Cross multiply
16,129,749.38x = 22,258,987.44 × 8,787,559.97 - Step 4: Simplify right side
16,129,749.38x = 195,602,187,000,476.81 - Step 5: Solve for x
x = 195,602,187,000,476.81/16,129,749.38 - Step 6: Final answer
x = 12,126,796.42
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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.