Finding the Fourth Proportional to 618,702,929.70, 853,793,017.11 and 340,244,453.94
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Solution
The fourth proportional to 618,702,929.70, 853,793,017.11 and 340,244,453.94 is: 469,527,983.37
Step by Step Solution
- Step 1: Write the proportion equation
618,702,929.70 : 853,793,017.11 = 340,244,453.94 : x - Step 2: Convert to fraction form
618,702,929.70/853,793,017.11 = 340,244,453.94/x - Step 3: Cross multiply
618,702,929.70x = 853,793,017.11 × 340,244,453.94 - Step 4: Simplify right side
618,702,929.70x = 290,498,338,884,377,024 - Step 5: Solve for x
x = 290,498,338,884,377,024/618,702,929.70 - Step 6: Final answer
x = 469,527,983.37
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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.