Finding the Fourth Proportional to 1,170,414,075.30, 1,755,621,112.95 and 480,816,233.70
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Solution
The fourth proportional to 1,170,414,075.30, 1,755,621,112.95 and 480,816,233.70 is: 721,224,350.55
Step by Step Solution
- Step 1: Write the proportion equation
1,170,414,075.30 : 1,755,621,112.95 = 480,816,233.70 : x - Step 2: Convert to fraction form
1,170,414,075.30/1,755,621,112.95 = 480,816,233.70/x - Step 3: Cross multiply
1,170,414,075.30x = 1,755,621,112.95 × 480,816,233.70 - Step 4: Simplify right side
1,170,414,075.30x = 844,131,131,332,821,248 - Step 5: Solve for x
x = 844,131,131,332,821,248/1,170,414,075.30 - Step 6: Final answer
x = 721,224,350.55
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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.