Finding the Fourth Proportional to 435,411,125.20, 652,220,892.60 and 220,121,678.80
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Solution
The fourth proportional to 435,411,125.20, 652,220,892.60 and 220,121,678.80 is: 329,729,649.79
Step by Step Solution
- Step 1: Write the proportion equation
435,411,125.20 : 652,220,892.60 = 220,121,678.80 : x - Step 2: Convert to fraction form
435,411,125.20/652,220,892.60 = 220,121,678.80/x - Step 3: Cross multiply
435,411,125.20x = 652,220,892.60 × 220,121,678.80 - Step 4: Simplify right side
435,411,125.20x = 143,567,957,827,546,512 - Step 5: Solve for x
x = 143,567,957,827,546,512/435,411,125.20 - Step 6: Final answer
x = 329,729,649.79
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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.