Finding the Fourth Proportional to 7,711,611.40, 11,559,122.70 and 2,917,448.20
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Solution
The fourth proportional to 7,711,611.40, 11,559,122.70 and 2,917,448.20 is: 4,373,034.37
Step by Step Solution
- Step 1: Write the proportion equation
7,711,611.40 : 11,559,122.70 = 2,917,448.20 : x - Step 2: Convert to fraction form
7,711,611.40/11,559,122.70 = 2,917,448.20/x - Step 3: Cross multiply
7,711,611.40x = 11,559,122.70 × 2,917,448.20 - Step 4: Simplify right side
7,711,611.40x = 33,723,141,714,694.14 - Step 5: Solve for x
x = 33,723,141,714,694.14/7,711,611.40 - Step 6: Final answer
x = 4,373,034.37
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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.