Finding the Fourth Proportional to 378,586,276.80, 567,655,466.40 and 197,187,748.80
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Solution
The fourth proportional to 378,586,276.80, 567,655,466.40 and 197,187,748.80 is: 295,664,978.82
Step by Step Solution
- Step 1: Write the proportion equation
378,586,276.80 : 567,655,466.40 = 197,187,748.80 : x - Step 2: Convert to fraction form
378,586,276.80/567,655,466.40 = 197,187,748.80/x - Step 3: Cross multiply
378,586,276.80x = 567,655,466.40 × 197,187,748.80 - Step 4: Simplify right side
378,586,276.80x = 111,934,703,513,430,048 - Step 5: Solve for x
x = 111,934,703,513,430,048/378,586,276.80 - Step 6: Final answer
x = 295,664,978.82
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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.