Finding the Fourth Proportional to 647,404,338.87, 893,214,022.08 and 396,246,900.15
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Solution
The fourth proportional to 647,404,338.87, 893,214,022.08 and 396,246,900.15 is: 546,695,884.12
Step by Step Solution
- Step 1: Write the proportion equation
647,404,338.87 : 893,214,022.08 = 396,246,900.15 : x - Step 2: Convert to fraction form
647,404,338.87/893,214,022.08 = 396,246,900.15/x - Step 3: Cross multiply
647,404,338.87x = 893,214,022.08 × 396,246,900.15 - Step 4: Simplify right side
647,404,338.87x = 353,933,287,419,713,664 - Step 5: Solve for x
x = 353,933,287,419,713,664/647,404,338.87 - Step 6: Final answer
x = 546,695,884.12
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.