Finding the Fourth Proportional to 177,519,125.80, 266,278,688.70 and 81,967,637.80
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Solution
The fourth proportional to 177,519,125.80, 266,278,688.70 and 81,967,637.80 is: 122,951,456.70
Step by Step Solution
- Step 1: Write the proportion equation
177,519,125.80 : 266,278,688.70 = 81,967,637.80 : x - Step 2: Convert to fraction form
177,519,125.80/266,278,688.70 = 81,967,637.80/x - Step 3: Cross multiply
177,519,125.80x = 266,278,688.70 × 81,967,637.80 - Step 4: Simplify right side
177,519,125.80x = 21,826,235,109,220,552 - Step 5: Solve for x
x = 21,826,235,109,220,552/177,519,125.80 - Step 6: Final answer
x = 122,951,456.70
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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.