Finding the Fourth Proportional to 543,083,051.20, 814,624,576.80 and 134,139,201.70
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Solution
The fourth proportional to 543,083,051.20, 814,624,576.80 and 134,139,201.70 is: 201,208,802.55
Step by Step Solution
- Step 1: Write the proportion equation
543,083,051.20 : 814,624,576.80 = 134,139,201.70 : x - Step 2: Convert to fraction form
543,083,051.20/814,624,576.80 = 134,139,201.70/x - Step 3: Cross multiply
543,083,051.20x = 814,624,576.80 × 134,139,201.70 - Step 4: Simplify right side
543,083,051.20x = 109,273,090,417,152,336 - Step 5: Solve for x
x = 109,273,090,417,152,336/543,083,051.20 - Step 6: Final answer
x = 201,208,802.55
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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.