Finding the Fourth Proportional to 1,330,793,272.40, 1,996,000,951.80 and 457,434,942.80
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Solution
The fourth proportional to 1,330,793,272.40, 1,996,000,951.80 and 457,434,942.80 is: 686,087,463.88
Step by Step Solution
- Step 1: Write the proportion equation
1,330,793,272.40 : 1,996,000,951.80 = 457,434,942.80 : x - Step 2: Convert to fraction form
1,330,793,272.40/1,996,000,951.80 = 457,434,942.80/x - Step 3: Cross multiply
1,330,793,272.40x = 1,996,000,951.80 × 457,434,942.80 - Step 4: Simplify right side
1,330,793,272.40x = 913,040,581,215,378,560 - Step 5: Solve for x
x = 913,040,581,215,378,560/1,330,793,272.40 - Step 6: Final answer
x = 686,087,463.88
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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.