Finding the Fourth Proportional to 221,872,631.35, 332,161,361.73 and 129,473,222.71
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Solution
The fourth proportional to 221,872,631.35, 332,161,361.73 and 129,473,222.71 is: 193,831,937.28
Step by Step Solution
- Step 1: Write the proportion equation
221,872,631.35 : 332,161,361.73 = 129,473,222.71 : x - Step 2: Convert to fraction form
221,872,631.35/332,161,361.73 = 129,473,222.71/x - Step 3: Cross multiply
221,872,631.35x = 332,161,361.73 × 129,473,222.71 - Step 4: Simplify right side
221,872,631.35x = 43,006,001,962,925,160 - Step 5: Solve for x
x = 43,006,001,962,925,160/221,872,631.35 - Step 6: Final answer
x = 193,831,937.28
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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.