Finding the Fourth Proportional to 18,195,973.29, 27,303,406.10 and 7,421,179.05
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Solution
The fourth proportional to 18,195,973.29, 27,303,406.10 and 7,421,179.05 is: 11,135,621.17
Step by Step Solution
- Step 1: Write the proportion equation
18,195,973.29 : 27,303,406.10 = 7,421,179.05 : x - Step 2: Convert to fraction form
18,195,973.29/27,303,406.10 = 7,421,179.05/x - Step 3: Cross multiply
18,195,973.29x = 27,303,406.10 × 7,421,179.05 - Step 4: Simplify right side
18,195,973.29x = 202,623,465,305,856.28 - Step 5: Solve for x
x = 202,623,465,305,856.28/18,195,973.29 - Step 6: Final answer
x = 11,135,621.17
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.