Finding the Fourth Proportional to 314,928,905.80, 472,393,358.70 and 161,590,462.60
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Solution
The fourth proportional to 314,928,905.80, 472,393,358.70 and 161,590,462.60 is: 242,385,693.90
Step by Step Solution
- Step 1: Write the proportion equation
314,928,905.80 : 472,393,358.70 = 161,590,462.60 : x - Step 2: Convert to fraction form
314,928,905.80/472,393,358.70 = 161,590,462.60/x - Step 3: Cross multiply
314,928,905.80x = 472,393,358.70 × 161,590,462.60 - Step 4: Simplify right side
314,928,905.80x = 76,334,261,361,500,736 - Step 5: Solve for x
x = 76,334,261,361,500,736/314,928,905.80 - Step 6: Final answer
x = 242,385,693.90
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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.