Finding the Fourth Proportional to 120,145,382.19, 180,223,313.99 and 58,786,205.09
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Solution
The fourth proportional to 120,145,382.19, 180,223,313.99 and 58,786,205.09 is: 88,181,871.86
Step by Step Solution
- Step 1: Write the proportion equation
120,145,382.19 : 180,223,313.99 = 58,786,205.09 : x - Step 2: Convert to fraction form
120,145,382.19/180,223,313.99 = 58,786,205.09/x - Step 3: Cross multiply
120,145,382.19x = 180,223,313.99 × 58,786,205.09 - Step 4: Simplify right side
120,145,382.19x = 10,594,644,697,020,560 - Step 5: Solve for x
x = 10,594,644,697,020,560/120,145,382.19 - Step 6: Final answer
x = 88,181,871.86
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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.