Finding the Fourth Proportional to 743,816,651.40, 1,026,436,155.30 and 404,726,526.99
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Solution
The fourth proportional to 743,816,651.40, 1,026,436,155.30 and 404,726,526.99 is: 558,505,835.45
Step by Step Solution
- Step 1: Write the proportion equation
743,816,651.40 : 1,026,436,155.30 = 404,726,526.99 : x - Step 2: Convert to fraction form
743,816,651.40/1,026,436,155.30 = 404,726,526.99/x - Step 3: Cross multiply
743,816,651.40x = 1,026,436,155.30 × 404,726,526.99 - Step 4: Simplify right side
743,816,651.40x = 415,425,940,311,537,280 - Step 5: Solve for x
x = 415,425,940,311,537,280/743,816,651.40 - Step 6: Final answer
x = 558,505,835.45
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1.5x scale
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.