Finding the Fourth Proportional to 5,480,490.80, 8,220,736.20 and 2,488,674.80
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Solution
The fourth proportional to 5,480,490.80, 8,220,736.20 and 2,488,674.80 is: 3,733,012.20
Step by Step Solution
- Step 1: Write the proportion equation
5,480,490.80 : 8,220,736.20 = 2,488,674.80 : x - Step 2: Convert to fraction form
5,480,490.80/8,220,736.20 = 2,488,674.80/x - Step 3: Cross multiply
5,480,490.80x = 8,220,736.20 × 2,488,674.80 - Step 4: Simplify right side
5,480,490.80x = 20,458,739,018,387.76 - Step 5: Solve for x
x = 20,458,739,018,387.76/5,480,490.80 - Step 6: Final answer
x = 3,733,012.20
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Double scale
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1.5x scale
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.