Finding the Fourth Proportional to 853,124,807.80, 1,279,687,211.70 and 754,489,358.20
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Solution
The fourth proportional to 853,124,807.80, 1,279,687,211.70 and 754,489,358.20 is: 1,131,734,037.30
Step by Step Solution
- Step 1: Write the proportion equation
853,124,807.80 : 1,279,687,211.70 = 754,489,358.20 : x - Step 2: Convert to fraction form
853,124,807.80/1,279,687,211.70 = 754,489,358.20/x - Step 3: Cross multiply
853,124,807.80x = 1,279,687,211.70 × 754,489,358.20 - Step 4: Simplify right side
853,124,807.80x = 965,510,383,052,280,576 - Step 5: Solve for x
x = 965,510,383,052,280,576/853,124,807.80 - Step 6: Final answer
x = 1,131,734,037.30
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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.