Finding the Fourth Proportional to 228,753,220.80, 315,682,640.64 and 124,331,260.80
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Solution
The fourth proportional to 228,753,220.80, 315,682,640.64 and 124,331,260.80 is: 171,578,876.95
Step by Step Solution
- Step 1: Write the proportion equation
228,753,220.80 : 315,682,640.64 = 124,331,260.80 : x - Step 2: Convert to fraction form
228,753,220.80/315,682,640.64 = 124,331,260.80/x - Step 3: Cross multiply
228,753,220.80x = 315,682,640.64 × 124,331,260.80 - Step 4: Simplify right side
228,753,220.80x = 39,249,220,723,444,520 - Step 5: Solve for x
x = 39,249,220,723,444,520/228,753,220.80 - Step 6: Final answer
x = 171,578,876.95
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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.