Finding the Fourth Proportional to 561,371,221.28, 840,414,831.84 and 327,486,792.80
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Solution
The fourth proportional to 561,371,221.28, 840,414,831.84 and 327,486,792.80 is: 490,272,296.60
Step by Step Solution
- Step 1: Write the proportion equation
561,371,221.28 : 840,414,831.84 = 327,486,792.80 : x - Step 2: Convert to fraction form
561,371,221.28/840,414,831.84 = 327,486,792.80/x - Step 3: Cross multiply
561,371,221.28x = 840,414,831.84 × 327,486,792.80 - Step 4: Simplify right side
561,371,221.28x = 275,224,757,900,832,928 - Step 5: Solve for x
x = 275,224,757,900,832,928/561,371,221.28 - Step 6: Final answer
x = 490,272,296.60
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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.