Finding the Fourth Proportional to 1,257,469,711.80, 1,886,204,567.70 and 568,722,175.80
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Solution
The fourth proportional to 1,257,469,711.80, 1,886,204,567.70 and 568,722,175.80 is: 853,083,263.70
Step by Step Solution
- Step 1: Write the proportion equation
1,257,469,711.80 : 1,886,204,567.70 = 568,722,175.80 : x - Step 2: Convert to fraction form
1,257,469,711.80/1,886,204,567.70 = 568,722,175.80/x - Step 3: Cross multiply
1,257,469,711.80x = 1,886,204,567.70 × 568,722,175.80 - Step 4: Simplify right side
1,257,469,711.80x = 1,072,726,365,746,242,304 - Step 5: Solve for x
x = 1,072,726,365,746,242,304/1,257,469,711.80 - Step 6: Final answer
x = 853,083,263.70
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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.