Finding the Fourth Proportional to 13,142,605.20, 19,713,907.80 and 5,568,586.80
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Solution
The fourth proportional to 13,142,605.20, 19,713,907.80 and 5,568,586.80 is: 8,352,880.20
Step by Step Solution
- Step 1: Write the proportion equation
13,142,605.20 : 19,713,907.80 = 5,568,586.80 : x - Step 2: Convert to fraction form
13,142,605.20/19,713,907.80 = 5,568,586.80/x - Step 3: Cross multiply
13,142,605.20x = 19,713,907.80 × 5,568,586.80 - Step 4: Simplify right side
13,142,605.20x = 109,778,606,751,497.05 - Step 5: Solve for x
x = 109,778,606,751,497.05/13,142,605.20 - Step 6: Final answer
x = 8,352,880.20
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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.