Finding the Fourth Proportional to 258,624,186.40, 387,936,279.60 and 230,564,101.60
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Solution
The fourth proportional to 258,624,186.40, 387,936,279.60 and 230,564,101.60 is: 345,846,152.40
Step by Step Solution
- Step 1: Write the proportion equation
258,624,186.40 : 387,936,279.60 = 230,564,101.60 : x - Step 2: Convert to fraction form
258,624,186.40/387,936,279.60 = 230,564,101.60/x - Step 3: Cross multiply
258,624,186.40x = 387,936,279.60 × 230,564,101.60 - Step 4: Simplify right side
258,624,186.40x = 89,444,179,784,020,416 - Step 5: Solve for x
x = 89,444,179,784,020,416/258,624,186.40 - Step 6: Final answer
x = 345,846,152.40
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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.