Finding the Fourth Proportional to 284,642,986.62, 426,880,721.07 and 129,106,812.54
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Solution
The fourth proportional to 284,642,986.62, 426,880,721.07 and 129,106,812.54 is: 193,622,227.92
Step by Step Solution
- Step 1: Write the proportion equation
284,642,986.62 : 426,880,721.07 = 129,106,812.54 : x - Step 2: Convert to fraction form
284,642,986.62/426,880,721.07 = 129,106,812.54/x - Step 3: Cross multiply
284,642,986.62x = 426,880,721.07 × 129,106,812.54 - Step 4: Simplify right side
284,642,986.62x = 55,113,209,232,124,520 - Step 5: Solve for x
x = 55,113,209,232,124,520/284,642,986.62 - Step 6: Final answer
x = 193,622,227.92
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.