Finding the Fourth Proportional to 426,236,512.55, 639,377,687.98 and 135,126,335.74
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Solution
The fourth proportional to 426,236,512.55, 639,377,687.98 and 135,126,335.74 is: 202,696,769.48
Step by Step Solution
- Step 1: Write the proportion equation
426,236,512.55 : 639,377,687.98 = 135,126,335.74 : x - Step 2: Convert to fraction form
426,236,512.55/639,377,687.98 = 135,126,335.74/x - Step 3: Cross multiply
426,236,512.55x = 639,377,687.98 × 135,126,335.74 - Step 4: Simplify right side
426,236,512.55x = 86,396,764,128,647,968 - Step 5: Solve for x
x = 86,396,764,128,647,968/426,236,512.55 - Step 6: Final answer
x = 202,696,769.48
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.