Finding the Fourth Proportional to 440,129,210.80, 659,773,912.20 and 163,706,407.60
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Solution
The fourth proportional to 440,129,210.80, 659,773,912.20 and 163,706,407.60 is: 245,403,427.78
Step by Step Solution
- Step 1: Write the proportion equation
440,129,210.80 : 659,773,912.20 = 163,706,407.60 : x - Step 2: Convert to fraction form
440,129,210.80/659,773,912.20 = 163,706,407.60/x - Step 3: Cross multiply
440,129,210.80x = 659,773,912.20 × 163,706,407.60 - Step 4: Simplify right side
440,129,210.80x = 108,009,216,994,459,824 - Step 5: Solve for x
x = 108,009,216,994,459,824/440,129,210.80 - Step 6: Final answer
x = 245,403,427.78
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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.