Finding the Fourth Proportional to 664,306,359.30, 996,742,974.15 and 319,082,285.70
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Solution
The fourth proportional to 664,306,359.30, 996,742,974.15 and 319,082,285.70 is: 478,759,569.28
Step by Step Solution
- Step 1: Write the proportion equation
664,306,359.30 : 996,742,974.15 = 319,082,285.70 : x - Step 2: Convert to fraction form
664,306,359.30/996,742,974.15 = 319,082,285.70/x - Step 3: Cross multiply
664,306,359.30x = 996,742,974.15 × 319,082,285.70 - Step 4: Simplify right side
664,306,359.30x = 318,043,026,447,198,016 - Step 5: Solve for x
x = 318,043,026,447,198,016/664,306,359.30 - Step 6: Final answer
x = 478,759,569.28
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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.