Finding the Fourth Proportional to 216,551,403.20, 324,827,104.80 and 192,742,846.40
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Solution
The fourth proportional to 216,551,403.20, 324,827,104.80 and 192,742,846.40 is: 289,114,269.60
Step by Step Solution
- Step 1: Write the proportion equation
216,551,403.20 : 324,827,104.80 = 192,742,846.40 : x - Step 2: Convert to fraction form
216,551,403.20/324,827,104.80 = 192,742,846.40/x - Step 3: Cross multiply
216,551,403.20x = 324,827,104.80 × 192,742,846.40 - Step 4: Simplify right side
216,551,403.20x = 62,608,100,767,023,104 - Step 5: Solve for x
x = 62,608,100,767,023,104/216,551,403.20 - Step 6: Final answer
x = 289,114,269.60
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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.