Finding the Fourth Proportional to 228,861,403.76, 315,826,541.70 and 124,439,496.68
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Solution
The fourth proportional to 228,861,403.76, 315,826,541.70 and 124,439,496.68 is: 171,725,311.66
Step by Step Solution
- Step 1: Write the proportion equation
228,861,403.76 : 315,826,541.70 = 124,439,496.68 : x - Step 2: Convert to fraction form
228,861,403.76/315,826,541.70 = 124,439,496.68/x - Step 3: Cross multiply
228,861,403.76x = 315,826,541.70 × 124,439,496.68 - Step 4: Simplify right side
228,861,403.76x = 39,301,295,887,333,032 - Step 5: Solve for x
x = 39,301,295,887,333,032/228,861,403.76 - Step 6: Final answer
x = 171,725,311.66
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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.