Finding the Fourth Proportional to 310,771,495.08, 428,864,598.18 and 171,542,220.84
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Solution
The fourth proportional to 310,771,495.08, 428,864,598.18 and 171,542,220.84 is: 236,728,228.86
Step by Step Solution
- Step 1: Write the proportion equation
310,771,495.08 : 428,864,598.18 = 171,542,220.84 : x - Step 2: Convert to fraction form
310,771,495.08/428,864,598.18 = 171,542,220.84/x - Step 3: Cross multiply
310,771,495.08x = 428,864,598.18 × 171,542,220.84 - Step 4: Simplify right side
310,771,495.08x = 73,568,385,611,451,424 - Step 5: Solve for x
x = 73,568,385,611,451,424/310,771,495.08 - Step 6: Final answer
x = 236,728,228.86
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1.5x scale
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.