Finding the Fourth Proportional to 7,836,416.30, 11,754,624.45 and 2,079,138.80
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Solution
The fourth proportional to 7,836,416.30, 11,754,624.45 and 2,079,138.80 is: 3,118,708.20
Step by Step Solution
- Step 1: Write the proportion equation
7,836,416.30 : 11,754,624.45 = 2,079,138.80 : x - Step 2: Convert to fraction form
7,836,416.30/11,754,624.45 = 2,079,138.80/x - Step 3: Cross multiply
7,836,416.30x = 11,754,624.45 × 2,079,138.80 - Step 4: Simplify right side
7,836,416.30x = 24,439,495,773,423.66 - Step 5: Solve for x
x = 24,439,495,773,423.66/7,836,416.30 - Step 6: Final answer
x = 3,118,708.20
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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.