Finding the Fourth Proportional to 743,437,845.41, 1,025,946,270.95 and 408,944,634.80
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Solution
The fourth proportional to 743,437,845.41, 1,025,946,270.95 and 408,944,634.80 is: 564,344,720.52
Step by Step Solution
- Step 1: Write the proportion equation
743,437,845.41 : 1,025,946,270.95 = 408,944,634.80 : x - Step 2: Convert to fraction form
743,437,845.41/1,025,946,270.95 = 408,944,634.80/x - Step 3: Cross multiply
743,437,845.41x = 1,025,946,270.95 × 408,944,634.80 - Step 4: Simplify right side
743,437,845.41x = 419,555,223,090,895,168 - Step 5: Solve for x
x = 419,555,223,090,895,168/743,437,845.41 - Step 6: Final answer
x = 564,344,720.52
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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.