Finding the Fourth Proportional to 1,707,269,821.25, 2,355,310,911.87 and 1,142,936,521.99
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Solution
The fourth proportional to 1,707,269,821.25, 2,355,310,911.87 and 1,142,936,521.99 is: 1,576,769,429.36
Step by Step Solution
- Step 1: Write the proportion equation
1,707,269,821.25 : 2,355,310,911.87 = 1,142,936,521.99 : x - Step 2: Convert to fraction form
1,707,269,821.25/2,355,310,911.87 = 1,142,936,521.99/x - Step 3: Cross multiply
1,707,269,821.25x = 2,355,310,911.87 × 1,142,936,521.99 - Step 4: Simplify right side
1,707,269,821.25x = 2,691,970,861,811,904,512 - Step 5: Solve for x
x = 2,691,970,861,811,904,512/1,707,269,821.25 - Step 6: Final answer
x = 1,576,769,429.36
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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.