Finding the Fourth Proportional to 7,847,531.79, 11,771,521.25 and 2,167,756.71
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Solution
The fourth proportional to 7,847,531.79, 11,771,521.25 and 2,167,756.71 is: 3,251,696.82
Step by Step Solution
- Step 1: Write the proportion equation
7,847,531.79 : 11,771,521.25 = 2,167,756.71 : x - Step 2: Convert to fraction form
7,847,531.79/11,771,521.25 = 2,167,756.71/x - Step 3: Cross multiply
7,847,531.79x = 11,771,521.25 × 2,167,756.71 - Step 4: Simplify right side
7,847,531.79x = 25,517,794,121,613.09 - Step 5: Solve for x
x = 25,517,794,121,613.09/7,847,531.79 - Step 6: Final answer
x = 3,251,696.82
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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.