Finding the Fourth Proportional to 12,239,195.70, 18,358,793.55 and 5,861,903.70
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Solution
The fourth proportional to 12,239,195.70, 18,358,793.55 and 5,861,903.70 is: 8,792,855.55
Step by Step Solution
- Step 1: Write the proportion equation
12,239,195.70 : 18,358,793.55 = 5,861,903.70 : x - Step 2: Convert to fraction form
12,239,195.70/18,358,793.55 = 5,861,903.70/x - Step 3: Cross multiply
12,239,195.70x = 18,358,793.55 × 5,861,903.70 - Step 4: Simplify right side
12,239,195.70x = 107,617,479,838,281.14 - Step 5: Solve for x
x = 107,617,479,838,281.14/12,239,195.70 - Step 6: Final answer
x = 8,792,855.55
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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.