Finding the Fourth Proportional to 3,893,421,163.98, 5,840,131,813.44 and 945,680,919.12
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Solution
The fourth proportional to 3,893,421,163.98, 5,840,131,813.44 and 945,680,919.12 is: 1,418,521,395.07
Step by Step Solution
- Step 1: Write the proportion equation
3,893,421,163.98 : 5,840,131,813.44 = 945,680,919.12 : x - Step 2: Convert to fraction form
3,893,421,163.98/5,840,131,813.44 = 945,680,919.12/x - Step 3: Cross multiply
3,893,421,163.98x = 5,840,131,813.44 × 945,680,919.12 - Step 4: Simplify right side
3,893,421,163.98x = 5,522,901,221,115,890,688 - Step 5: Solve for x
x = 5,522,901,221,115,890,688/3,893,421,163.98 - Step 6: Final answer
x = 1,418,521,395.07
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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.