Finding the Fourth Proportional to 2,176,128,251.60, 3,264,192,377.40 and 1,305,415,317.20
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Solution
The fourth proportional to 2,176,128,251.60, 3,264,192,377.40 and 1,305,415,317.20 is: 1,958,122,975.80
Step by Step Solution
- Step 1: Write the proportion equation
2,176,128,251.60 : 3,264,192,377.40 = 1,305,415,317.20 : x - Step 2: Convert to fraction form
2,176,128,251.60/3,264,192,377.40 = 1,305,415,317.20/x - Step 3: Cross multiply
2,176,128,251.60x = 3,264,192,377.40 × 1,305,415,317.20 - Step 4: Simplify right side
2,176,128,251.60x = 4,261,126,727,745,443,328 - Step 5: Solve for x
x = 4,261,126,727,745,443,328/2,176,128,251.60 - Step 6: Final answer
x = 1,958,122,975.80
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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.