Finding the Fourth Proportional to 160,405,069.71, 221,353,268.84 and 90,788,955.92
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Solution
The fourth proportional to 160,405,069.71, 221,353,268.84 and 90,788,955.92 is: 125,285,517.49
Step by Step Solution
- Step 1: Write the proportion equation
160,405,069.71 : 221,353,268.84 = 90,788,955.92 : x - Step 2: Convert to fraction form
160,405,069.71/221,353,268.84 = 90,788,955.92/x - Step 3: Cross multiply
160,405,069.71x = 221,353,268.84 × 90,788,955.92 - Step 4: Simplify right side
160,405,069.71x = 20,096,432,167,072,492 - Step 5: Solve for x
x = 20,096,432,167,072,492/160,405,069.71 - Step 6: Final answer
x = 125,285,517.49
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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.