Finding the Fourth Proportional to 6,643,868.64, 9,168,199.60 and 3,743,430.88
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Solution
The fourth proportional to 6,643,868.64, 9,168,199.60 and 3,743,430.88 is: 5,165,743.54
Step by Step Solution
- Step 1: Write the proportion equation
6,643,868.64 : 9,168,199.60 = 3,743,430.88 : x - Step 2: Convert to fraction form
6,643,868.64/9,168,199.60 = 3,743,430.88/x - Step 3: Cross multiply
6,643,868.64x = 9,168,199.60 × 3,743,430.88 - Step 4: Simplify right side
6,643,868.64x = 34,320,521,496,643.64 - Step 5: Solve for x
x = 34,320,521,496,643.64/6,643,868.64 - Step 6: Final answer
x = 5,165,743.54
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.