Finding the Fourth Proportional to 4,539,085.20, 6,799,296.60 and 3,120,742.80
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Solution
The fourth proportional to 4,539,085.20, 6,799,296.60 and 3,120,742.80 is: 4,674,698.75
Step by Step Solution
- Step 1: Write the proportion equation
4,539,085.20 : 6,799,296.60 = 3,120,742.80 : x - Step 2: Convert to fraction form
4,539,085.20/6,799,296.60 = 3,120,742.80/x - Step 3: Cross multiply
4,539,085.20x = 6,799,296.60 × 3,120,742.80 - Step 4: Simplify right side
4,539,085.20x = 21,218,855,909,514.48 - Step 5: Solve for x
x = 21,218,855,909,514.48/4,539,085.20 - Step 6: Final answer
x = 4,674,698.75
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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.