Finding the Fourth Proportional to 1,198,254,789.96, 1,653,593,850.50 and 669,618,776.63
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Solution
The fourth proportional to 1,198,254,789.96, 1,653,593,850.50 and 669,618,776.63 is: 924,075,163.71
Step by Step Solution
- Step 1: Write the proportion equation
1,198,254,789.96 : 1,653,593,850.50 = 669,618,776.63 : x - Step 2: Convert to fraction form
1,198,254,789.96/1,653,593,850.50 = 669,618,776.63/x - Step 3: Cross multiply
1,198,254,789.96x = 1,653,593,850.50 × 669,618,776.63 - Step 4: Simplify right side
1,198,254,789.96x = 1,107,277,491,206,193,792 - Step 5: Solve for x
x = 1,107,277,491,206,193,792/1,198,254,789.96 - Step 6: Final answer
x = 924,075,163.71
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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.