Finding the Fourth Proportional to 7,869,172.68, 11,803,693.41 and 2,189,380.59
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Solution
The fourth proportional to 7,869,172.68, 11,803,693.41 and 2,189,380.59 is: 3,284,052.63
Step by Step Solution
- Step 1: Write the proportion equation
7,869,172.68 : 11,803,693.41 = 2,189,380.59 : x - Step 2: Convert to fraction form
7,869,172.68/11,803,693.41 = 2,189,380.59/x - Step 3: Cross multiply
7,869,172.68x = 11,803,693.41 × 2,189,380.59 - Step 4: Simplify right side
7,869,172.68x = 25,842,777,242,164.91 - Step 5: Solve for x
x = 25,842,777,242,164.91/7,869,172.68 - Step 6: Final answer
x = 3,284,052.63
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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.