Finding the Fourth Proportional to 763,448,873.40, 1,145,509,233.30 and 354,294,415.80
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Solution
The fourth proportional to 763,448,873.40, 1,145,509,233.30 and 354,294,415.80 is: 531,597,515.89
Step by Step Solution
- Step 1: Write the proportion equation
763,448,873.40 : 1,145,509,233.30 = 354,294,415.80 : x - Step 2: Convert to fraction form
763,448,873.40/1,145,509,233.30 = 354,294,415.80/x - Step 3: Cross multiply
763,448,873.40x = 1,145,509,233.30 × 354,294,415.80 - Step 4: Simplify right side
763,448,873.40x = 405,847,524,605,529,408 - Step 5: Solve for x
x = 405,847,524,605,529,408/763,448,873.40 - Step 6: Final answer
x = 531,597,515.89
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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.