Finding the Fourth Proportional to 1,323,178,968.96, 1,825,953,602.40 and 728,457,517.62
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Solution
The fourth proportional to 1,323,178,968.96, 1,825,953,602.40 and 728,457,517.62 is: 1,005,253,000.31
Step by Step Solution
- Step 1: Write the proportion equation
1,323,178,968.96 : 1,825,953,602.40 = 728,457,517.62 : x - Step 2: Convert to fraction form
1,323,178,968.96/1,825,953,602.40 = 728,457,517.62/x - Step 3: Cross multiply
1,323,178,968.96x = 1,825,953,602.40 × 728,457,517.62 - Step 4: Simplify right side
1,323,178,968.96x = 1,330,129,628,493,600,512 - Step 5: Solve for x
x = 1,330,129,628,493,600,512/1,323,178,968.96 - Step 6: Final answer
x = 1,005,253,000.31
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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.