Finding the Fourth Proportional to 13,207,536.20, 19,811,304.30 and 6,387,376.70
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Solution
The fourth proportional to 13,207,536.20, 19,811,304.30 and 6,387,376.70 is: 9,581,065.05
Step by Step Solution
- Step 1: Write the proportion equation
13,207,536.20 : 19,811,304.30 = 6,387,376.70 : x - Step 2: Convert to fraction form
13,207,536.20/19,811,304.30 = 6,387,376.70/x - Step 3: Cross multiply
13,207,536.20x = 19,811,304.30 × 6,387,376.70 - Step 4: Simplify right side
13,207,536.20x = 126,542,263,482,429.81 - Step 5: Solve for x
x = 126,542,263,482,429.81/13,207,536.20 - Step 6: Final answer
x = 9,581,065.05
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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.