Finding the Fourth Proportional to 274,481,212.53, 378,790,654.91 and 149,038,695.63
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Solution
The fourth proportional to 274,481,212.53, 378,790,654.91 and 149,038,695.63 is: 205,676,973.68
Step by Step Solution
- Step 1: Write the proportion equation
274,481,212.53 : 378,790,654.91 = 149,038,695.63 : x - Step 2: Convert to fraction form
274,481,212.53/378,790,654.91 = 149,038,695.63/x - Step 3: Cross multiply
274,481,212.53x = 378,790,654.91 × 149,038,695.63 - Step 4: Simplify right side
274,481,212.53x = 56,454,465,123,874,656 - Step 5: Solve for x
x = 56,454,465,123,874,656/274,481,212.53 - Step 6: Final answer
x = 205,676,973.68
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.