Finding the Fourth Proportional to 742,883,578.46, 1,114,330,116.20 and 218,250,534.50
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Solution
The fourth proportional to 742,883,578.46, 1,114,330,116.20 and 218,250,534.50 is: 327,377,196.81
Step by Step Solution
- Step 1: Write the proportion equation
742,883,578.46 : 1,114,330,116.20 = 218,250,534.50 : x - Step 2: Convert to fraction form
742,883,578.46/1,114,330,116.20 = 218,250,534.50/x - Step 3: Cross multiply
742,883,578.46x = 1,114,330,116.20 × 218,250,534.50 - Step 4: Simplify right side
742,883,578.46x = 243,203,143,470,097,120 - Step 5: Solve for x
x = 243,203,143,470,097,120/742,883,578.46 - Step 6: Final answer
x = 327,377,196.81
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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.