Finding the Fourth Proportional to 70,861,709.80, 106,292,564.70 and 53,729,626.60
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Solution
The fourth proportional to 70,861,709.80, 106,292,564.70 and 53,729,626.60 is: 80,594,439.90
Step by Step Solution
- Step 1: Write the proportion equation
70,861,709.80 : 106,292,564.70 = 53,729,626.60 : x - Step 2: Convert to fraction form
70,861,709.80/106,292,564.70 = 53,729,626.60/x - Step 3: Cross multiply
70,861,709.80x = 106,292,564.70 × 53,729,626.60 - Step 4: Simplify right side
70,861,709.80x = 5,711,059,811,687,341 - Step 5: Solve for x
x = 5,711,059,811,687,341/70,861,709.80 - Step 6: Final answer
x = 80,594,439.90
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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.