Finding the Fourth Proportional to 167,519,971,994.40, 231,177,246,542.36 and 91,396,437,556.14
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Solution
The fourth proportional to 167,519,971,994.40, 231,177,246,542.36 and 91,396,437,556.14 is: 126,126,912,071.81
Step by Step Solution
- Step 1: Write the proportion equation
167,519,971,994.40 : 231,177,246,542.36 = 91,396,437,556.14 : x - Step 2: Convert to fraction form
167,519,971,994.40/231,177,246,542.36 = 91,396,437,556.14/x - Step 3: Cross multiply
167,519,971,994.40x = 231,177,246,542.36 × 91,396,437,556.14 - Step 4: Simplify right side
167,519,971,994.40x = 21,128,776,778,009,186,140,160 - Step 5: Solve for x
x = 21,128,776,778,009,186,140,160/167,519,971,994.40 - Step 6: Final answer
x = 126,126,912,071.81
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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.