Finding the Fourth Proportional to 256,910,163.35, 354,536,376.53 and 139,435,495.41
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Solution
The fourth proportional to 256,910,163.35, 354,536,376.53 and 139,435,495.41 is: 192,421,174.22
Step by Step Solution
- Step 1: Write the proportion equation
256,910,163.35 : 354,536,376.53 = 139,435,495.41 : x - Step 2: Convert to fraction form
256,910,163.35/354,536,376.53 = 139,435,495.41/x - Step 3: Cross multiply
256,910,163.35x = 354,536,376.53 × 139,435,495.41 - Step 4: Simplify right side
256,910,163.35x = 49,434,955,301,629,664 - Step 5: Solve for x
x = 49,434,955,301,629,664/256,910,163.35 - Step 6: Final answer
x = 192,421,174.22
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.