Finding the Fourth Proportional to 378,051,392.80, 565,943,348.40 and 224,618,471.20
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Solution
The fourth proportional to 378,051,392.80, 565,943,348.40 and 224,618,471.20 is: 336,254,096.99
Step by Step Solution
- Step 1: Write the proportion equation
378,051,392.80 : 565,943,348.40 = 224,618,471.20 : x - Step 2: Convert to fraction form
378,051,392.80/565,943,348.40 = 224,618,471.20/x - Step 3: Cross multiply
378,051,392.80x = 565,943,348.40 × 224,618,471.20 - Step 4: Simplify right side
378,051,392.80x = 127,121,329,703,416,960 - Step 5: Solve for x
x = 127,121,329,703,416,960/378,051,392.80 - Step 6: Final answer
x = 336,254,096.99
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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.