Finding the Fourth Proportional to 314,367,428.70, 471,551,143.05 and 142,180,544.70
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Solution
The fourth proportional to 314,367,428.70, 471,551,143.05 and 142,180,544.70 is: 213,270,817.05
Step by Step Solution
- Step 1: Write the proportion equation
314,367,428.70 : 471,551,143.05 = 142,180,544.70 : x - Step 2: Convert to fraction form
314,367,428.70/471,551,143.05 = 142,180,544.70/x - Step 3: Cross multiply
314,367,428.70x = 471,551,143.05 × 142,180,544.70 - Step 4: Simplify right side
314,367,428.70x = 67,045,398,372,756,616 - Step 5: Solve for x
x = 67,045,398,372,756,616/314,367,428.70 - Step 6: Final answer
x = 213,270,817.05
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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.