Finding the Fourth Proportional to 498,432,831.20, 747,649,246.80 and 283,441,983.20
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Solution
The fourth proportional to 498,432,831.20, 747,649,246.80 and 283,441,983.20 is: 425,162,974.80
Step by Step Solution
- Step 1: Write the proportion equation
498,432,831.20 : 747,649,246.80 = 283,441,983.20 : x - Step 2: Convert to fraction form
498,432,831.20/747,649,246.80 = 283,441,983.20/x - Step 3: Cross multiply
498,432,831.20x = 747,649,246.80 × 283,441,983.20 - Step 4: Simplify right side
498,432,831.20x = 211,915,185,250,978,240 - Step 5: Solve for x
x = 211,915,185,250,978,240/498,432,831.20 - Step 6: Final answer
x = 425,162,974.80
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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.