Finding the Fourth Proportional to 268,331,542.40, 402,497,313.60 and 159,492,425.60
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Solution
The fourth proportional to 268,331,542.40, 402,497,313.60 and 159,492,425.60 is: 239,238,638.40
Step by Step Solution
- Step 1: Write the proportion equation
268,331,542.40 : 402,497,313.60 = 159,492,425.60 : x - Step 2: Convert to fraction form
268,331,542.40/402,497,313.60 = 159,492,425.60/x - Step 3: Cross multiply
268,331,542.40x = 402,497,313.60 × 159,492,425.60 - Step 4: Simplify right side
268,331,542.40x = 64,195,272,843,547,872 - Step 5: Solve for x
x = 64,195,272,843,547,872/268,331,542.40 - Step 6: Final answer
x = 239,238,638.40
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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.