Finding the Fourth Proportional to 163,905,902.80, 245,858,854.20 and 156,347,630.80
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Solution
The fourth proportional to 163,905,902.80, 245,858,854.20 and 156,347,630.80 is: 234,521,446.20
Step by Step Solution
- Step 1: Write the proportion equation
163,905,902.80 : 245,858,854.20 = 156,347,630.80 : x - Step 2: Convert to fraction form
163,905,902.80/245,858,854.20 = 156,347,630.80/x - Step 3: Cross multiply
163,905,902.80x = 245,858,854.20 × 156,347,630.80 - Step 4: Simplify right side
163,905,902.80x = 38,439,449,365,372,632 - Step 5: Solve for x
x = 38,439,449,365,372,632/163,905,902.80 - Step 6: Final answer
x = 234,521,446.20
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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.