Finding the Fourth Proportional to 1,232,375,131.24, 1,700,679,134.94 and 667,860,009.96
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Solution
The fourth proportional to 1,232,375,131.24, 1,700,679,134.94 and 667,860,009.96 is: 921,647,601.62
Step by Step Solution
- Step 1: Write the proportion equation
1,232,375,131.24 : 1,700,679,134.94 = 667,860,009.96 : x - Step 2: Convert to fraction form
1,232,375,131.24/1,700,679,134.94 = 667,860,009.96/x - Step 3: Cross multiply
1,232,375,131.24x = 1,700,679,134.94 × 667,860,009.96 - Step 4: Simplify right side
1,232,375,131.24x = 1,135,815,583,999,792,640 - Step 5: Solve for x
x = 1,135,815,583,999,792,640/1,232,375,131.24 - Step 6: Final answer
x = 921,647,601.62
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.