Finding the Fourth Proportional to 410,201,220.40, 615,301,830.60 and 395,868,497.20
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Solution
The fourth proportional to 410,201,220.40, 615,301,830.60 and 395,868,497.20 is: 593,802,745.80
Step by Step Solution
- Step 1: Write the proportion equation
410,201,220.40 : 615,301,830.60 = 395,868,497.20 : x - Step 2: Convert to fraction form
410,201,220.40/615,301,830.60 = 395,868,497.20/x - Step 3: Cross multiply
410,201,220.40x = 615,301,830.60 × 395,868,497.20 - Step 4: Simplify right side
410,201,220.40x = 243,578,611,004,030,976 - Step 5: Solve for x
x = 243,578,611,004,030,976/410,201,220.40 - Step 6: Final answer
x = 593,802,745.80
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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.