Finding the Fourth Proportional to 118,115,299.20, 177,172,948.80 and 106,777,891.20
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Solution
The fourth proportional to 118,115,299.20, 177,172,948.80 and 106,777,891.20 is: 160,166,836.80
Step by Step Solution
- Step 1: Write the proportion equation
118,115,299.20 : 177,172,948.80 = 106,777,891.20 : x - Step 2: Convert to fraction form
118,115,299.20/177,172,948.80 = 106,777,891.20/x - Step 3: Cross multiply
118,115,299.20x = 177,172,948.80 × 106,777,891.20 - Step 4: Simplify right side
118,115,299.20x = 18,918,153,850,549,572 - Step 5: Solve for x
x = 18,918,153,850,549,572/118,115,299.20 - Step 6: Final answer
x = 160,166,836.80
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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.