Finding the Fourth Proportional to 15,998,991.12, 22,070,473.84 and 9,717,846.99
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Solution
The fourth proportional to 15,998,991.12, 22,070,473.84 and 9,717,846.99 is: 13,405,688.28
Step by Step Solution
- Step 1: Write the proportion equation
15,998,991.12 : 22,070,473.84 = 9,717,846.99 : x - Step 2: Convert to fraction form
15,998,991.12/22,070,473.84 = 9,717,846.99/x - Step 3: Cross multiply
15,998,991.12x = 22,070,473.84 × 9,717,846.99 - Step 4: Simplify right side
15,998,991.12x = 214,477,487,696,665.25 - Step 5: Solve for x
x = 214,477,487,696,665.25/15,998,991.12 - Step 6: Final answer
x = 13,405,688.28
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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.