Finding the Fourth Proportional to 7,759,899.68, 11,619,975.12 and 6,477,318.16
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Solution
The fourth proportional to 7,759,899.68, 11,619,975.12 and 6,477,318.16 is: 9,699,387.75
Step by Step Solution
- Step 1: Write the proportion equation
7,759,899.68 : 11,619,975.12 = 6,477,318.16 : x - Step 2: Convert to fraction form
7,759,899.68/11,619,975.12 = 6,477,318.16/x - Step 3: Cross multiply
7,759,899.68x = 11,619,975.12 × 6,477,318.16 - Step 4: Simplify right side
7,759,899.68x = 75,266,275,863,524.17 - Step 5: Solve for x
x = 75,266,275,863,524.17/7,759,899.68 - Step 6: Final answer
x = 9,699,387.75
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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.