Finding the Fourth Proportional to 823,133,439.21, 1,234,942,709.85 and 331,593,773.07
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Solution
The fourth proportional to 823,133,439.21, 1,234,942,709.85 and 331,593,773.07 is: 497,488,369.66
Step by Step Solution
- Step 1: Write the proportion equation
823,133,439.21 : 1,234,942,709.85 = 331,593,773.07 : x - Step 2: Convert to fraction form
823,133,439.21/1,234,942,709.85 = 331,593,773.07/x - Step 3: Cross multiply
823,133,439.21x = 1,234,942,709.85 × 331,593,773.07 - Step 4: Simplify right side
823,133,439.21x = 409,499,312,684,451,712 - Step 5: Solve for x
x = 409,499,312,684,451,712/823,133,439.21 - Step 6: Final answer
x = 497,488,369.66
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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.