Finding the Fourth Proportional to 1,174,595,231.60, 1,763,236,540.20 and 690,193,977.20
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Solution
The fourth proportional to 1,174,595,231.60, 1,763,236,540.20 and 690,193,977.20 is: 1,036,080,521.77
Step by Step Solution
- Step 1: Write the proportion equation
1,174,595,231.60 : 1,763,236,540.20 = 690,193,977.20 : x - Step 2: Convert to fraction form
1,174,595,231.60/1,763,236,540.20 = 690,193,977.20/x - Step 3: Cross multiply
1,174,595,231.60x = 1,763,236,540.20 × 690,193,977.20 - Step 4: Simplify right side
1,174,595,231.60x = 1,216,975,240,425,005,824 - Step 5: Solve for x
x = 1,216,975,240,425,005,824/1,174,595,231.60 - Step 6: Final answer
x = 1,036,080,521.77
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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.