Finding the Fourth Proportional to 7,485,645.80, 11,232,356.70 and 3,496,557.80
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Solution
The fourth proportional to 7,485,645.80, 11,232,356.70 and 3,496,557.80 is: 5,246,652.79
Step by Step Solution
- Step 1: Write the proportion equation
7,485,645.80 : 11,232,356.70 = 3,496,557.80 : x - Step 2: Convert to fraction form
7,485,645.80/11,232,356.70 = 3,496,557.80/x - Step 3: Cross multiply
7,485,645.80x = 11,232,356.70 × 3,496,557.80 - Step 4: Simplify right side
7,485,645.80x = 39,274,584,431,767.26 - Step 5: Solve for x
x = 39,274,584,431,767.26/7,485,645.80 - Step 6: Final answer
x = 5,246,652.79
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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.