Finding the Fourth Proportional to 3,138,673.60, 4,708,010.40 and 2,949,716.80
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Solution
The fourth proportional to 3,138,673.60, 4,708,010.40 and 2,949,716.80 is: 4,424,575.20
Step by Step Solution
- Step 1: Write the proportion equation
3,138,673.60 : 4,708,010.40 = 2,949,716.80 : x - Step 2: Convert to fraction form
3,138,673.60/4,708,010.40 = 2,949,716.80/x - Step 3: Cross multiply
3,138,673.60x = 4,708,010.40 × 2,949,716.80 - Step 4: Simplify right side
3,138,673.60x = 13,887,297,371,454.72 - Step 5: Solve for x
x = 13,887,297,371,454.72/3,138,673.60 - Step 6: Final answer
x = 4,424,575.20
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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.