Finding the Fourth Proportional to 484,457,361.05, 726,650,890.68 and 189,296,981.55
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Solution
The fourth proportional to 484,457,361.05, 726,650,890.68 and 189,296,981.55 is: 283,931,737.45
Step by Step Solution
- Step 1: Write the proportion equation
484,457,361.05 : 726,650,890.68 = 189,296,981.55 : x - Step 2: Convert to fraction form
484,457,361.05/726,650,890.68 = 189,296,981.55/x - Step 3: Cross multiply
484,457,361.05x = 726,650,890.68 × 189,296,981.55 - Step 4: Simplify right side
484,457,361.05x = 137,552,820,243,407,664 - Step 5: Solve for x
x = 137,552,820,243,407,664/484,457,361.05 - Step 6: Final answer
x = 283,931,737.45
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1.5x scale
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.