Finding the Fourth Proportional to 1,170,414,076.05, 1,755,621,114.08 and 480,816,234.45
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Solution
The fourth proportional to 1,170,414,076.05, 1,755,621,114.08 and 480,816,234.45 is: 721,224,351.68
Step by Step Solution
- Step 1: Write the proportion equation
1,170,414,076.05 : 1,755,621,114.08 = 480,816,234.45 : x - Step 2: Convert to fraction form
1,170,414,076.05/1,755,621,114.08 = 480,816,234.45/x - Step 3: Cross multiply
1,170,414,076.05x = 1,755,621,114.08 × 480,816,234.45 - Step 4: Simplify right side
1,170,414,076.05x = 844,131,133,190,455,424 - Step 5: Solve for x
x = 844,131,133,190,455,424/1,170,414,076.05 - Step 6: Final answer
x = 721,224,351.68
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Double scale
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1.5x scale
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.