Finding the Fourth Proportional to 96,982,809.60, 145,474,214.40 and 79,764,121.20
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Solution
The fourth proportional to 96,982,809.60, 145,474,214.40 and 79,764,121.20 is: 119,646,181.80
Step by Step Solution
- Step 1: Write the proportion equation
96,982,809.60 : 145,474,214.40 = 79,764,121.20 : x - Step 2: Convert to fraction form
96,982,809.60/145,474,214.40 = 79,764,121.20/x - Step 3: Cross multiply
96,982,809.60x = 145,474,214.40 × 79,764,121.20 - Step 4: Simplify right side
96,982,809.60x = 11,603,622,868,876,386 - Step 5: Solve for x
x = 11,603,622,868,876,386/96,982,809.60 - Step 6: Final answer
x = 119,646,181.80
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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.