Finding the Fourth Proportional to 1,138,965,082.79, 1,708,275,003.85 and 309,983,324.49
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Solution
The fourth proportional to 1,138,965,082.79, 1,708,275,003.85 and 309,983,324.49 is: 464,928,005.99
Step by Step Solution
- Step 1: Write the proportion equation
1,138,965,082.79 : 1,708,275,003.85 = 309,983,324.49 : x - Step 2: Convert to fraction form
1,138,965,082.79/1,708,275,003.85 = 309,983,324.49/x - Step 3: Cross multiply
1,138,965,082.79x = 1,708,275,003.85 × 309,983,324.49 - Step 4: Simplify right side
1,138,965,082.79x = 529,536,764,835,815,616 - Step 5: Solve for x
x = 529,536,764,835,815,616/1,138,965,082.79 - Step 6: Final answer
x = 464,928,005.99
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.