Finding the Fourth Proportional to 81,973,013.17, 122,883,851.97 and 40,996,795.54
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Solution
The fourth proportional to 81,973,013.17, 122,883,851.97 and 40,996,795.54 is: 61,457,349.92
Step by Step Solution
- Step 1: Write the proportion equation
81,973,013.17 : 122,883,851.97 = 40,996,795.54 : x - Step 2: Convert to fraction form
81,973,013.17/122,883,851.97 = 40,996,795.54/x - Step 3: Cross multiply
81,973,013.17x = 122,883,851.97 × 40,996,795.54 - Step 4: Simplify right side
81,973,013.17x = 5,037,844,154,381,716 - Step 5: Solve for x
x = 5,037,844,154,381,716/81,973,013.17 - Step 6: Final answer
x = 61,457,349.92
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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.