Finding the Fourth Proportional to 121,279,265.80, 181,918,898.70 and 66,670,750.60
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Solution
The fourth proportional to 121,279,265.80, 181,918,898.70 and 66,670,750.60 is: 100,006,125.90
Step by Step Solution
- Step 1: Write the proportion equation
121,279,265.80 : 181,918,898.70 = 66,670,750.60 : x - Step 2: Convert to fraction form
121,279,265.80/181,918,898.70 = 66,670,750.60/x - Step 3: Cross multiply
121,279,265.80x = 181,918,898.70 × 66,670,750.60 - Step 4: Simplify right side
121,279,265.80x = 12,128,669,524,654,364 - Step 5: Solve for x
x = 12,128,669,524,654,364/121,279,265.80 - Step 6: Final answer
x = 100,006,125.90
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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.