Finding the Fourth Proportional to 86,098,058.19, 129,086,533.51 and 39,990,974.54
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Solution
The fourth proportional to 86,098,058.19, 129,086,533.51 and 39,990,974.54 is: 59,958,335.68
Step by Step Solution
- Step 1: Write the proportion equation
86,098,058.19 : 129,086,533.51 = 39,990,974.54 : x - Step 2: Convert to fraction form
86,098,058.19/129,086,533.51 = 39,990,974.54/x - Step 3: Cross multiply
86,098,058.19x = 129,086,533.51 × 39,990,974.54 - Step 4: Simplify right side
86,098,058.19x = 5,162,296,274,309,856 - Step 5: Solve for x
x = 5,162,296,274,309,856/86,098,058.19 - Step 6: Final answer
x = 59,958,335.68
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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.