Finding the Fourth Proportional to 281,232,135.60, 392,817,997.20 and 281,232,135.60
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Solution
The fourth proportional to 281,232,135.60, 392,817,997.20 and 281,232,135.60 is: 392,817,997.20
Step by Step Solution
- Step 1: Write the proportion equation
281,232,135.60 : 392,817,997.20 = 281,232,135.60 : x - Step 2: Convert to fraction form
281,232,135.60/392,817,997.20 = 281,232,135.60/x - Step 3: Cross multiply
281,232,135.60x = 392,817,997.20 × 281,232,135.60 - Step 4: Simplify right side
281,232,135.60x = 110,473,044,254,670,832 - Step 5: Solve for x
x = 110,473,044,254,670,832/281,232,135.60 - Step 6: Final answer
x = 392,817,997.20
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Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.