Finding the Fourth Proportional to 7,920,872,524,416.40, 11,881,293,957,475 and 2,481,915,751,108.60
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Solution
The fourth proportional to 7,920,872,524,416.40, 11,881,293,957,475 and 2,481,915,751,108.60 is: 3,722,868,980,116.72
Step by Step Solution
- Step 1: Write the proportion equation
7,920,872,524,416.40 : 11,881,293,957,475 = 2,481,915,751,108.60 : x - Step 2: Convert to fraction form
7,920,872,524,416.40/11,881,293,957,475 = 2,481,915,751,108.60/x - Step 3: Cross multiply
7,920,872,524,416.40x = 11,881,293,957,475 × 2,481,915,751,108.60 - Step 4: Simplify right side
7,920,872,524,416.40x = 29,488,370,616,608,635,349,893,120 - Step 5: Solve for x
x = 29,488,370,616,608,635,349,893,120/7,920,872,524,416.40 - Step 6: Final answer
x = 3,722,868,980,116.72
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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.