Finding the Fourth Proportional to 485,187,664.84, 727,522,558.12 and 251,783,366.28
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Solution
The fourth proportional to 485,187,664.84, 727,522,558.12 and 251,783,366.28 is: 377,540,675.50
Step by Step Solution
- Step 1: Write the proportion equation
485,187,664.84 : 727,522,558.12 = 251,783,366.28 : x - Step 2: Convert to fraction form
485,187,664.84/727,522,558.12 = 251,783,366.28/x - Step 3: Cross multiply
485,187,664.84x = 727,522,558.12 × 251,783,366.28 - Step 4: Simplify right side
485,187,664.84x = 183,178,078,728,090,560 - Step 5: Solve for x
x = 183,178,078,728,090,560/485,187,664.84 - Step 6: Final answer
x = 377,540,675.50
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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.