Finding the Fourth Proportional to 12,986,432.19, 19,482,305.09 and 4,465,662.03
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Solution
The fourth proportional to 12,986,432.19, 19,482,305.09 and 4,465,662.03 is: 6,699,406.64
Step by Step Solution
- Step 1: Write the proportion equation
12,986,432.19 : 19,482,305.09 = 4,465,662.03 : x - Step 2: Convert to fraction form
12,986,432.19/19,482,305.09 = 4,465,662.03/x - Step 3: Cross multiply
12,986,432.19x = 19,482,305.09 × 4,465,662.03 - Step 4: Simplify right side
12,986,432.19x = 87,001,390,074,960.44 - Step 5: Solve for x
x = 87,001,390,074,960.44/12,986,432.19 - Step 6: Final answer
x = 6,699,406.64
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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.