Finding the Fourth Proportional to 1,053,040,927.20, 1,579,561,390.80 and 746,930,911.20
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Solution
The fourth proportional to 1,053,040,927.20, 1,579,561,390.80 and 746,930,911.20 is: 1,120,396,366.80
Step by Step Solution
- Step 1: Write the proportion equation
1,053,040,927.20 : 1,579,561,390.80 = 746,930,911.20 : x - Step 2: Convert to fraction form
1,053,040,927.20/1,579,561,390.80 = 746,930,911.20/x - Step 3: Cross multiply
1,053,040,927.20x = 1,579,561,390.80 × 746,930,911.20 - Step 4: Simplify right side
1,053,040,927.20x = 1,179,823,228,926,583,296 - Step 5: Solve for x
x = 1,179,823,228,926,583,296/1,053,040,927.20 - Step 6: Final answer
x = 1,120,396,366.80
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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.