Finding the Fourth Proportional to 8,315,187.58, 12,395,918.56 and 8,184,153.82
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Solution
The fourth proportional to 8,315,187.58, 12,395,918.56 and 8,184,153.82 is: 12,200,579.15
Step by Step Solution
- Step 1: Write the proportion equation
8,315,187.58 : 12,395,918.56 = 8,184,153.82 : x - Step 2: Convert to fraction form
8,315,187.58/12,395,918.56 = 8,184,153.82/x - Step 3: Cross multiply
8,315,187.58x = 12,395,918.56 × 8,184,153.82 - Step 4: Simplify right side
8,315,187.58x = 101,450,104,235,232.91 - Step 5: Solve for x
x = 101,450,104,235,232.91/8,315,187.58 - Step 6: Final answer
x = 12,200,579.15
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.