Finding the Fourth Proportional to 19,903,053.51, 27,474,688.49 and 13,380,465.94
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Solution
The fourth proportional to 19,903,053.51, 27,474,688.49 and 13,380,465.94 is: 18,470,740.34
Step by Step Solution
- Step 1: Write the proportion equation
19,903,053.51 : 27,474,688.49 = 13,380,465.94 : x - Step 2: Convert to fraction form
19,903,053.51/27,474,688.49 = 13,380,465.94/x - Step 3: Cross multiply
19,903,053.51x = 27,474,688.49 × 13,380,465.94 - Step 4: Simplify right side
19,903,053.51x = 367,624,133,416,966 - Step 5: Solve for x
x = 367,624,133,416,966/19,903,053.51 - Step 6: Final answer
x = 18,470,740.34
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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.