Finding the Fourth Proportional to 472,392,487.80, 708,588,731.70 and 242,809,975.80
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Solution
The fourth proportional to 472,392,487.80, 708,588,731.70 and 242,809,975.80 is: 364,214,963.70
Step by Step Solution
- Step 1: Write the proportion equation
472,392,487.80 : 708,588,731.70 = 242,809,975.80 : x - Step 2: Convert to fraction form
472,392,487.80/708,588,731.70 = 242,809,975.80/x - Step 3: Cross multiply
472,392,487.80x = 708,588,731.70 × 242,809,975.80 - Step 4: Simplify right side
472,392,487.80x = 172,052,412,796,229,728 - Step 5: Solve for x
x = 172,052,412,796,229,728/472,392,487.80 - Step 6: Final answer
x = 364,214,963.70
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Similar ratio
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1.5x scale
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.