Finding the Fourth Proportional to 1,660,893,617.88, 2,491,489,230.30 and 480,455,556.48
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Solution
The fourth proportional to 1,660,893,617.88, 2,491,489,230.30 and 480,455,556.48 is: 720,726,379.90
Step by Step Solution
- Step 1: Write the proportion equation
1,660,893,617.88 : 2,491,489,230.30 = 480,455,556.48 : x - Step 2: Convert to fraction form
1,660,893,617.88/2,491,489,230.30 = 480,455,556.48/x - Step 3: Cross multiply
1,660,893,617.88x = 2,491,489,230.30 × 480,455,556.48 - Step 4: Simplify right side
1,660,893,617.88x = 1,197,049,844,607,713,536 - Step 5: Solve for x
x = 1,197,049,844,607,713,536/1,660,893,617.88 - Step 6: Final answer
x = 720,726,379.90
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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.