Finding the Fourth Proportional to 2,586,948,514.80, 3,880,989,642.60 and 1,277,477,890.80
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Solution
The fourth proportional to 2,586,948,514.80, 3,880,989,642.60 and 1,277,477,890.80 is: 1,916,496,766.16
Step by Step Solution
- Step 1: Write the proportion equation
2,586,948,514.80 : 3,880,989,642.60 = 1,277,477,890.80 : x - Step 2: Convert to fraction form
2,586,948,514.80/3,880,989,642.60 = 1,277,477,890.80/x - Step 3: Cross multiply
2,586,948,514.80x = 3,880,989,642.60 × 1,277,477,890.80 - Step 4: Simplify right side
2,586,948,514.80x = 4,957,878,462,845,293,568 - Step 5: Solve for x
x = 4,957,878,462,845,293,568/2,586,948,514.80 - Step 6: Final answer
x = 1,916,496,766.16
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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.