Finding the Fourth Proportional to 1,724,434,834.49, 2,379,721,114.11 and 931,481,163.91
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Solution
The fourth proportional to 1,724,434,834.49, 2,379,721,114.11 and 931,481,163.91 is: 1,285,444,569.32
Step by Step Solution
- Step 1: Write the proportion equation
1,724,434,834.49 : 2,379,721,114.11 = 931,481,163.91 : x - Step 2: Convert to fraction form
1,724,434,834.49/2,379,721,114.11 = 931,481,163.91/x - Step 3: Cross multiply
1,724,434,834.49x = 2,379,721,114.11 × 931,481,163.91 - Step 4: Simplify right side
1,724,434,834.49x = 2,216,665,393,145,408,000 - Step 5: Solve for x
x = 2,216,665,393,145,408,000/1,724,434,834.49 - Step 6: Final answer
x = 1,285,444,569.32
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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.