Finding the Fourth Proportional to 284,968,130.31, 393,256,776.87 and 154,587,938.31
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Solution
The fourth proportional to 284,968,130.31, 393,256,776.87 and 154,587,938.31 is: 213,331,765.54
Step by Step Solution
- Step 1: Write the proportion equation
284,968,130.31 : 393,256,776.87 = 154,587,938.31 : x - Step 2: Convert to fraction form
284,968,130.31/393,256,776.87 = 154,587,938.31/x - Step 3: Cross multiply
284,968,130.31x = 393,256,776.87 × 154,587,938.31 - Step 4: Simplify right side
284,968,130.31x = 60,792,754,362,769,000 - Step 5: Solve for x
x = 60,792,754,362,769,000/284,968,130.31 - Step 6: Final answer
x = 213,331,765.54
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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.