Finding the Fourth Proportional to 415,136,657.70, 622,704,986.55 and 262,459,563.30
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Solution
The fourth proportional to 415,136,657.70, 622,704,986.55 and 262,459,563.30 is: 393,689,344.95
Step by Step Solution
- Step 1: Write the proportion equation
415,136,657.70 : 622,704,986.55 = 262,459,563.30 : x - Step 2: Convert to fraction form
415,136,657.70/622,704,986.55 = 262,459,563.30/x - Step 3: Cross multiply
415,136,657.70x = 622,704,986.55 × 262,459,563.30 - Step 4: Simplify right side
415,136,657.70x = 163,434,878,834,645,376 - Step 5: Solve for x
x = 163,434,878,834,645,376/415,136,657.70 - Step 6: Final answer
x = 393,689,344.95
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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.