Finding the Fourth Proportional to 1,631,199,478.80, 2,442,768,139.80 and 1,082,972,816.40
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Solution
The fourth proportional to 1,631,199,478.80, 2,442,768,139.80 and 1,082,972,816.40 is: 1,621,782,943.50
Step by Step Solution
- Step 1: Write the proportion equation
1,631,199,478.80 : 2,442,768,139.80 = 1,082,972,816.40 : x - Step 2: Convert to fraction form
1,631,199,478.80/2,442,768,139.80 = 1,082,972,816.40/x - Step 3: Cross multiply
1,631,199,478.80x = 2,442,768,139.80 × 1,082,972,816.40 - Step 4: Simplify right side
1,631,199,478.80x = 2,645,451,492,171,395,584 - Step 5: Solve for x
x = 2,645,451,492,171,395,584/1,631,199,478.80 - Step 6: Final answer
x = 1,621,782,943.50
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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.