Finding the Fourth Proportional to 1,294,762,851.73, 1,786,936,382.09 and 849,101,153.05
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Solution
The fourth proportional to 1,294,762,851.73, 1,786,936,382.09 and 849,101,153.05 is: 1,171,866,910.17
Step by Step Solution
- Step 1: Write the proportion equation
1,294,762,851.73 : 1,786,936,382.09 = 849,101,153.05 : x - Step 2: Convert to fraction form
1,294,762,851.73/1,786,936,382.09 = 849,101,153.05/x - Step 3: Cross multiply
1,294,762,851.73x = 1,786,936,382.09 × 849,101,153.05 - Step 4: Simplify right side
1,294,762,851.73x = 1,517,289,742,459,614,208 - Step 5: Solve for x
x = 1,517,289,742,459,614,208/1,294,762,851.73 - Step 6: Final answer
x = 1,171,866,910.17
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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.