Finding the Fourth Proportional to 398,580,201.70, 597,964,780.95 and 204,521,568.10
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Solution
The fourth proportional to 398,580,201.70, 597,964,780.95 and 204,521,568.10 is: 306,830,831.40
Step by Step Solution
- Step 1: Write the proportion equation
398,580,201.70 : 597,964,780.95 = 204,521,568.10 : x - Step 2: Convert to fraction form
398,580,201.70/597,964,780.95 = 204,521,568.10/x - Step 3: Cross multiply
398,580,201.70x = 597,964,780.95 × 204,521,568.10 - Step 4: Simplify right side
398,580,201.70x = 122,296,694,668,467,008 - Step 5: Solve for x
x = 122,296,694,668,467,008/398,580,201.70 - Step 6: Final answer
x = 306,830,831.40
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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.