Finding the Fourth Proportional to 1,955,816,163.60, 2,932,716,475.80 and 728,352,790.80
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Solution
The fourth proportional to 1,955,816,163.60, 2,932,716,475.80 and 728,352,790.80 is: 1,092,153,889.27
Step by Step Solution
- Step 1: Write the proportion equation
1,955,816,163.60 : 2,932,716,475.80 = 728,352,790.80 : x - Step 2: Convert to fraction form
1,955,816,163.60/2,932,716,475.80 = 728,352,790.80/x - Step 3: Cross multiply
1,955,816,163.60x = 2,932,716,475.80 × 728,352,790.80 - Step 4: Simplify right side
1,955,816,163.60x = 2,136,052,229,774,070,784 - Step 5: Solve for x
x = 2,136,052,229,774,070,784/1,955,816,163.60 - Step 6: Final answer
x = 1,092,153,889.27
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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.