Finding the Fourth Proportional to 7,771,203.40, 11,656,805.10 and 5,503,721.80
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Solution
The fourth proportional to 7,771,203.40, 11,656,805.10 and 5,503,721.80 is: 8,255,582.70
Step by Step Solution
- Step 1: Write the proportion equation
7,771,203.40 : 11,656,805.10 = 5,503,721.80 : x - Step 2: Convert to fraction form
7,771,203.40/11,656,805.10 = 5,503,721.80/x - Step 3: Cross multiply
7,771,203.40x = 11,656,805.10 × 5,503,721.80 - Step 4: Simplify right side
7,771,203.40x = 64,155,812,347,221.17 - Step 5: Solve for x
x = 64,155,812,347,221.17/7,771,203.40 - Step 6: Final answer
x = 8,255,582.70
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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.