Finding the Fourth Proportional to 1,040,441,443.28, 1,560,273,327.12 and 418,446,735.44
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Solution
The fourth proportional to 1,040,441,443.28, 1,560,273,327.12 and 418,446,735.44 is: 627,513,719.63
Step by Step Solution
- Step 1: Write the proportion equation
1,040,441,443.28 : 1,560,273,327.12 = 418,446,735.44 : x - Step 2: Convert to fraction form
1,040,441,443.28/1,560,273,327.12 = 418,446,735.44/x - Step 3: Cross multiply
1,040,441,443.28x = 1,560,273,327.12 × 418,446,735.44 - Step 4: Simplify right side
1,040,441,443.28x = 652,891,280,127,471,104 - Step 5: Solve for x
x = 652,891,280,127,471,104/1,040,441,443.28 - Step 6: Final answer
x = 627,513,719.63
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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.