Finding the Fourth Proportional to 32,127,905.80, 48,120,999.90 and 19,326,082.60
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Solution
The fourth proportional to 32,127,905.80, 48,120,999.90 and 19,326,082.60 is: 28,946,499.80
Step by Step Solution
- Step 1: Write the proportion equation
32,127,905.80 : 48,120,999.90 = 19,326,082.60 : x - Step 2: Convert to fraction form
32,127,905.80/48,120,999.90 = 19,326,082.60/x - Step 3: Cross multiply
32,127,905.80x = 48,120,999.90 × 19,326,082.60 - Step 4: Simplify right side
32,127,905.80x = 929,990,418,861,991.75 - Step 5: Solve for x
x = 929,990,418,861,991.75/32,127,905.80 - Step 6: Final answer
x = 28,946,499.80
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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.