Finding the Fourth Proportional to 230,741,982.08, 318,639,776.64 and 148,378,866.56
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Solution
The fourth proportional to 230,741,982.08, 318,639,776.64 and 148,378,866.56 is: 204,901,632.87
Step by Step Solution
- Step 1: Write the proportion equation
230,741,982.08 : 318,639,776.64 = 148,378,866.56 : x - Step 2: Convert to fraction form
230,741,982.08/318,639,776.64 = 148,378,866.56/x - Step 3: Cross multiply
230,741,982.08x = 318,639,776.64 × 148,378,866.56 - Step 4: Simplify right side
230,741,982.08x = 47,279,408,898,774,760 - Step 5: Solve for x
x = 47,279,408,898,774,760/230,741,982.08 - Step 6: Final answer
x = 204,901,632.87
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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.