Finding the Fourth Proportional to 19,609,982,777.92, 27,070,126,388.64 and 13,183,529,865.28
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Solution
The fourth proportional to 19,609,982,777.92, 27,070,126,388.64 and 13,183,529,865.28 is: 18,198,884,911.99
Step by Step Solution
- Step 1: Write the proportion equation
19,609,982,777.92 : 27,070,126,388.64 = 13,183,529,865.28 : x - Step 2: Convert to fraction form
19,609,982,777.92/27,070,126,388.64 = 13,183,529,865.28/x - Step 3: Cross multiply
19,609,982,777.92x = 27,070,126,388.64 × 13,183,529,865.28 - Step 4: Simplify right side
19,609,982,777.92x = 356,879,819,701,539,700,736 - Step 5: Solve for x
x = 356,879,819,701,539,700,736/19,609,982,777.92 - Step 6: Final answer
x = 18,198,884,911.99
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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.