Finding the Fourth Proportional to 5,395,403.60, 8,091,809.40 and 3,115,998.80
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Solution
The fourth proportional to 5,395,403.60, 8,091,809.40 and 3,115,998.80 is: 4,673,249.72
Step by Step Solution
- Step 1: Write the proportion equation
5,395,403.60 : 8,091,809.40 = 3,115,998.80 : x - Step 2: Convert to fraction form
5,395,403.60/8,091,809.40 = 3,115,998.80/x - Step 3: Cross multiply
5,395,403.60x = 8,091,809.40 × 3,115,998.80 - Step 4: Simplify right side
5,395,403.60x = 25,214,068,380,228.72 - Step 5: Solve for x
x = 25,214,068,380,228.72/5,395,403.60 - Step 6: Final answer
x = 4,673,249.72
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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.