Finding the Fourth Proportional to 7,488,115.80, 11,232,173.70 and 5,718,643.80
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Solution
The fourth proportional to 7,488,115.80, 11,232,173.70 and 5,718,643.80 is: 8,577,965.70
Step by Step Solution
- Step 1: Write the proportion equation
7,488,115.80 : 11,232,173.70 = 5,718,643.80 : x - Step 2: Convert to fraction form
7,488,115.80/11,232,173.70 = 5,718,643.80/x - Step 3: Cross multiply
7,488,115.80x = 11,232,173.70 × 5,718,643.80 - Step 4: Simplify right side
7,488,115.80x = 64,232,800,490,028.05 - Step 5: Solve for x
x = 64,232,800,490,028.05/7,488,115.80 - Step 6: Final answer
x = 8,577,965.70
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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.