Finding the Fourth Proportional to 2,086,214,937.80, 3,129,322,406.70 and 1,259,717,894.60
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Solution
The fourth proportional to 2,086,214,937.80, 3,129,322,406.70 and 1,259,717,894.60 is: 1,889,576,841.90
Step by Step Solution
- Step 1: Write the proportion equation
2,086,214,937.80 : 3,129,322,406.70 = 1,259,717,894.60 : x - Step 2: Convert to fraction form
2,086,214,937.80/3,129,322,406.70 = 1,259,717,894.60/x - Step 3: Cross multiply
2,086,214,937.80x = 3,129,322,406.70 × 1,259,717,894.60 - Step 4: Simplify right side
2,086,214,937.80x = 3,942,063,433,692,728,320 - Step 5: Solve for x
x = 3,942,063,433,692,728,320/2,086,214,937.80 - Step 6: Final answer
x = 1,889,576,841.90
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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.