Finding the Fourth Proportional to 49,914,140.80, 74,812,228.80 and 21,160,220.80
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Solution
The fourth proportional to 49,914,140.80, 74,812,228.80 and 21,160,220.80 is: 31,715,326.65
Step by Step Solution
- Step 1: Write the proportion equation
49,914,140.80 : 74,812,228.80 = 21,160,220.80 : x - Step 2: Convert to fraction form
49,914,140.80/74,812,228.80 = 21,160,220.80/x - Step 3: Cross multiply
49,914,140.80x = 74,812,228.80 × 21,160,220.80 - Step 4: Simplify right side
49,914,140.80x = 1,583,043,279,948,119 - Step 5: Solve for x
x = 1,583,043,279,948,119/49,914,140.80 - Step 6: Final answer
x = 31,715,326.65
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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.