Finding the Fourth Proportional to 73,811,728.80, 110,717,593.20 and 30,711,863.70
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Solution
The fourth proportional to 73,811,728.80, 110,717,593.20 and 30,711,863.70 is: 46,067,795.55
Step by Step Solution
- Step 1: Write the proportion equation
73,811,728.80 : 110,717,593.20 = 30,711,863.70 : x - Step 2: Convert to fraction form
73,811,728.80/110,717,593.20 = 30,711,863.70/x - Step 3: Cross multiply
73,811,728.80x = 110,717,593.20 × 30,711,863.70 - Step 4: Simplify right side
73,811,728.80x = 3,400,343,631,550,447 - Step 5: Solve for x
x = 3,400,343,631,550,447/73,811,728.80 - Step 6: Final answer
x = 46,067,795.55
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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.