Finding the Fourth Proportional to 880,592,831.20, 1,320,889,246.80 and 225,542,591.20
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Solution
The fourth proportional to 880,592,831.20, 1,320,889,246.80 and 225,542,591.20 is: 338,313,886.80
Step by Step Solution
- Step 1: Write the proportion equation
880,592,831.20 : 1,320,889,246.80 = 225,542,591.20 : x - Step 2: Convert to fraction form
880,592,831.20/1,320,889,246.80 = 225,542,591.20/x - Step 3: Cross multiply
880,592,831.20x = 1,320,889,246.80 × 225,542,591.20 - Step 4: Simplify right side
880,592,831.20x = 297,916,783,411,488,256 - Step 5: Solve for x
x = 297,916,783,411,488,256/880,592,831.20 - Step 6: Final answer
x = 338,313,886.80
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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.