Finding the Fourth Proportional to 19,903,033.16, 27,474,660.44 and 13,380,445.99
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Solution
The fourth proportional to 19,903,033.16, 27,474,660.44 and 13,380,445.99 is: 18,470,712.84
Step by Step Solution
- Step 1: Write the proportion equation
19,903,033.16 : 27,474,660.44 = 13,380,445.99 : x - Step 2: Convert to fraction form
19,903,033.16/27,474,660.44 = 13,380,445.99/x - Step 3: Cross multiply
19,903,033.16x = 27,474,660.44 × 13,380,445.99 - Step 4: Simplify right side
19,903,033.16x = 367,623,210,128,627.44 - Step 5: Solve for x
x = 367,623,210,128,627.44/19,903,033.16 - Step 6: Final answer
x = 18,470,712.84
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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.