Finding the Fourth Proportional to 1,620,162,313.70, 2,430,243,470.55 and 1,556,672,828.90
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Solution
The fourth proportional to 1,620,162,313.70, 2,430,243,470.55 and 1,556,672,828.90 is: 2,335,009,243.35
Step by Step Solution
- Step 1: Write the proportion equation
1,620,162,313.70 : 2,430,243,470.55 = 1,556,672,828.90 : x - Step 2: Convert to fraction form
1,620,162,313.70/2,430,243,470.55 = 1,556,672,828.90/x - Step 3: Cross multiply
1,620,162,313.70x = 2,430,243,470.55 × 1,556,672,828.90 - Step 4: Simplify right side
1,620,162,313.70x = 3,783,093,978,216,822,784 - Step 5: Solve for x
x = 3,783,093,978,216,822,784/1,620,162,313.70 - Step 6: Final answer
x = 2,335,009,243.35
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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.