Finding the Fourth Proportional to 1,245,136,276.80, 1,867,704,415.20 and 896,457,836.70
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Solution
The fourth proportional to 1,245,136,276.80, 1,867,704,415.20 and 896,457,836.70 is: 1,344,686,755.05
Step by Step Solution
- Step 1: Write the proportion equation
1,245,136,276.80 : 1,867,704,415.20 = 896,457,836.70 : x - Step 2: Convert to fraction form
1,245,136,276.80/1,867,704,415.20 = 896,457,836.70/x - Step 3: Cross multiply
1,245,136,276.80x = 1,867,704,415.20 × 896,457,836.70 - Step 4: Simplify right side
1,245,136,276.80x = 1,674,318,259,645,230,848 - Step 5: Solve for x
x = 1,674,318,259,645,230,848/1,245,136,276.80 - Step 6: Final answer
x = 1,344,686,755.05
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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.