Finding the Fourth Proportional to 203,229,710.72, 280,436,764.74 and 115,106,120.36
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Solution
The fourth proportional to 203,229,710.72, 280,436,764.74 and 115,106,120.36 is: 158,834,984.71
Step by Step Solution
- Step 1: Write the proportion equation
203,229,710.72 : 280,436,764.74 = 115,106,120.36 : x - Step 2: Convert to fraction form
203,229,710.72/280,436,764.74 = 115,106,120.36/x - Step 3: Cross multiply
203,229,710.72x = 280,436,764.74 × 115,106,120.36 - Step 4: Simplify right side
203,229,710.72x = 32,279,987,995,531,444 - Step 5: Solve for x
x = 32,279,987,995,531,444/203,229,710.72 - Step 6: Final answer
x = 158,834,984.71
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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.