Finding the Fourth Proportional to 160,394,928.87, 221,345,165.66 and 87,056,085.99
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Solution
The fourth proportional to 160,394,928.87, 221,345,165.66 and 87,056,085.99 is: 120,137,487.58
Step by Step Solution
- Step 1: Write the proportion equation
160,394,928.87 : 221,345,165.66 = 87,056,085.99 : x - Step 2: Convert to fraction form
160,394,928.87/221,345,165.66 = 87,056,085.99/x - Step 3: Cross multiply
160,394,928.87x = 221,345,165.66 × 87,056,085.99 - Step 4: Simplify right side
160,394,928.87x = 19,269,443,774,732,472 - Step 5: Solve for x
x = 19,269,443,774,732,472/160,394,928.87 - Step 6: Final answer
x = 120,137,487.58
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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.