Finding the Fourth Proportional to 57,230,708.88, 78,977,615 and 31,124,664.84
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Solution
The fourth proportional to 57,230,708.88, 78,977,615 and 31,124,664.84 is: 42,951,622.39
Step by Step Solution
- Step 1: Write the proportion equation
57,230,708.88 : 78,977,615 = 31,124,664.84 : x - Step 2: Convert to fraction form
57,230,708.88/78,977,615 = 31,124,664.84/x - Step 3: Cross multiply
57,230,708.88x = 78,977,615 × 31,124,664.84 - Step 4: Simplify right side
57,230,708.88x = 2,458,151,796,737,556.50 - Step 5: Solve for x
x = 2,458,151,796,737,556.50/57,230,708.88 - Step 6: Final answer
x = 42,951,622.39
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1.5x scale
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.