Finding the Fourth Proportional to 74,751,036.53, 112,126,554.79 and 20,163,516.53
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Solution
The fourth proportional to 74,751,036.53, 112,126,554.79 and 20,163,516.53 is: 30,245,274.79
Step by Step Solution
- Step 1: Write the proportion equation
74,751,036.53 : 112,126,554.79 = 20,163,516.53 : x - Step 2: Convert to fraction form
74,751,036.53/112,126,554.79 = 20,163,516.53/x - Step 3: Cross multiply
74,751,036.53x = 112,126,554.79 × 20,163,516.53 - Step 4: Simplify right side
74,751,036.53x = 2,260,865,640,349,074 - Step 5: Solve for x
x = 2,260,865,640,349,074/74,751,036.53 - Step 6: Final answer
x = 30,245,274.79
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.