Finding the Fourth Proportional to 472,392,415.80, 708,588,623.70 and 239,940,122.40
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Solution
The fourth proportional to 472,392,415.80, 708,588,623.70 and 239,940,122.40 is: 359,910,183.60
Step by Step Solution
- Step 1: Write the proportion equation
472,392,415.80 : 708,588,623.70 = 239,940,122.40 : x - Step 2: Convert to fraction form
472,392,415.80/708,588,623.70 = 239,940,122.40/x - Step 3: Cross multiply
472,392,415.80x = 708,588,623.70 × 239,940,122.40 - Step 4: Simplify right side
472,392,415.80x = 170,018,841,101,825,568 - Step 5: Solve for x
x = 170,018,841,101,825,568/472,392,415.80 - Step 6: Final answer
x = 359,910,183.60
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1.5x scale
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.