Finding the Fourth Proportional to 122,346,100.76, 168,841,272.93 and 75,330,297.80
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Solution
The fourth proportional to 122,346,100.76, 168,841,272.93 and 75,330,297.80 is: 103,958,060.71
Step by Step Solution
- Step 1: Write the proportion equation
122,346,100.76 : 168,841,272.93 = 75,330,297.80 : x - Step 2: Convert to fraction form
122,346,100.76/168,841,272.93 = 75,330,297.80/x - Step 3: Cross multiply
122,346,100.76x = 168,841,272.93 × 75,330,297.80 - Step 4: Simplify right side
122,346,100.76x = 12,718,863,370,747,978 - Step 5: Solve for x
x = 12,718,863,370,747,978/122,346,100.76 - Step 6: Final answer
x = 103,958,060.71
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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.