Finding the Fourth Proportional to 19,903,204.20, 27,474,895.64 and 13,380,616.13
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Solution
The fourth proportional to 19,903,204.20, 27,474,895.64 and 13,380,616.13 is: 18,470,947.08
Step by Step Solution
- Step 1: Write the proportion equation
19,903,204.20 : 27,474,895.64 = 13,380,616.13 : x - Step 2: Convert to fraction form
19,903,204.20/27,474,895.64 = 13,380,616.13/x - Step 3: Cross multiply
19,903,204.20x = 27,474,895.64 × 13,380,616.13 - Step 4: Simplify right side
19,903,204.20x = 367,631,031,666,727.69 - Step 5: Solve for x
x = 367,631,031,666,727.69/19,903,204.20 - Step 6: Final answer
x = 18,470,947.08
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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.