Finding the Fourth Proportional to 251,251,416.80, 376,877,125.20 and 130,119,999.20
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Solution
The fourth proportional to 251,251,416.80, 376,877,125.20 and 130,119,999.20 is: 195,179,998.80
Step by Step Solution
- Step 1: Write the proportion equation
251,251,416.80 : 376,877,125.20 = 130,119,999.20 : x - Step 2: Convert to fraction form
251,251,416.80/376,877,125.20 = 130,119,999.20/x - Step 3: Cross multiply
251,251,416.80x = 376,877,125.20 × 130,119,999.20 - Step 4: Simplify right side
251,251,416.80x = 49,039,251,229,522,296 - Step 5: Solve for x
x = 49,039,251,229,522,296/251,251,416.80 - Step 6: Final answer
x = 195,179,998.80
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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.