Finding the Fourth Proportional to 22,765,831.84, 31,416,179.60 and 12,452,331.68
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Solution
The fourth proportional to 22,765,831.84, 31,416,179.60 and 12,452,331.68 is: 17,183,852.15
Step by Step Solution
- Step 1: Write the proportion equation
22,765,831.84 : 31,416,179.60 = 12,452,331.68 : x - Step 2: Convert to fraction form
22,765,831.84/31,416,179.60 = 12,452,331.68/x - Step 3: Cross multiply
22,765,831.84x = 31,416,179.60 × 12,452,331.68 - Step 4: Simplify right side
22,765,831.84x = 391,204,688,497,649.75 - Step 5: Solve for x
x = 391,204,688,497,649.75/22,765,831.84 - Step 6: Final answer
x = 17,183,852.15
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.