Finding the Fourth Proportional to 122,008,592.70, 168,371,246 and 66,253,515.06
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Solution
The fourth proportional to 122,008,592.70, 168,371,246 and 66,253,515.06 is: 91,429,518.49
Step by Step Solution
- Step 1: Write the proportion equation
122,008,592.70 : 168,371,246 = 66,253,515.06 : x - Step 2: Convert to fraction form
122,008,592.70/168,371,246 = 66,253,515.06/x - Step 3: Cross multiply
122,008,592.70x = 168,371,246 × 66,253,515.06 - Step 4: Simplify right side
122,008,592.70x = 11,155,186,882,531,966 - Step 5: Solve for x
x = 11,155,186,882,531,966/122,008,592.70 - Step 6: Final answer
x = 91,429,518.49
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.