Finding the Fourth Proportional to 771,022,358.20, 1,156,643,351.99 and 239,279,723.90
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Solution
The fourth proportional to 771,022,358.20, 1,156,643,351.99 and 239,279,723.90 is: 358,953,665.83
Step by Step Solution
- Step 1: Write the proportion equation
771,022,358.20 : 1,156,643,351.99 = 239,279,723.90 : x - Step 2: Convert to fraction form
771,022,358.20/1,156,643,351.99 = 239,279,723.90/x - Step 3: Cross multiply
771,022,358.20x = 1,156,643,351.99 × 239,279,723.90 - Step 4: Simplify right side
771,022,358.20x = 276,761,301,913,180,832 - Step 5: Solve for x
x = 276,761,301,913,180,832/771,022,358.20 - Step 6: Final answer
x = 358,953,665.83
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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.