Finding the Fourth Proportional to 354,278,801.80, 531,418,202.70 and 163,175,825.80
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Solution
The fourth proportional to 354,278,801.80, 531,418,202.70 and 163,175,825.80 is: 244,763,738.70
Step by Step Solution
- Step 1: Write the proportion equation
354,278,801.80 : 531,418,202.70 = 163,175,825.80 : x - Step 2: Convert to fraction form
354,278,801.80/531,418,202.70 = 163,175,825.80/x - Step 3: Cross multiply
354,278,801.80x = 531,418,202.70 × 163,175,825.80 - Step 4: Simplify right side
354,278,801.80x = 86,714,604,070,724,288 - Step 5: Solve for x
x = 86,714,604,070,724,288/354,278,801.80 - Step 6: Final answer
x = 244,763,738.70
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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.