Finding the Fourth Proportional to 658,090,715.80, 987,136,073.70 and 335,604,443.80
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Solution
The fourth proportional to 658,090,715.80, 987,136,073.70 and 335,604,443.80 is: 503,406,665.70
Step by Step Solution
- Step 1: Write the proportion equation
658,090,715.80 : 987,136,073.70 = 335,604,443.80 : x - Step 2: Convert to fraction form
658,090,715.80/987,136,073.70 = 335,604,443.80/x - Step 3: Cross multiply
658,090,715.80x = 987,136,073.70 × 335,604,443.80 - Step 4: Simplify right side
658,090,715.80x = 331,287,252,969,004,352 - Step 5: Solve for x
x = 331,287,252,969,004,352/658,090,715.80 - Step 6: Final answer
x = 503,406,665.70
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Similar ratio
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.