Finding the Fourth Proportional to 693,541,909.26, 957,226,877.10 and 411,440,934.24
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Solution
The fourth proportional to 693,541,909.26, 957,226,877.10 and 411,440,934.24 is: 567,870,975.55
Step by Step Solution
- Step 1: Write the proportion equation
693,541,909.26 : 957,226,877.10 = 411,440,934.24 : x - Step 2: Convert to fraction form
693,541,909.26/957,226,877.10 = 411,440,934.24/x - Step 3: Cross multiply
693,541,909.26x = 957,226,877.10 × 411,440,934.24 - Step 4: Simplify right side
693,541,909.26x = 393,842,320,593,661,696 - Step 5: Solve for x
x = 393,842,320,593,661,696/693,541,909.26 - Step 6: Final answer
x = 567,870,975.55
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Double scale
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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.