Finding the Fourth Proportional to 326,730,823.40, 490,096,235.10 and 324,817,635.80
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Solution
The fourth proportional to 326,730,823.40, 490,096,235.10 and 324,817,635.80 is: 487,226,453.70
Step by Step Solution
- Step 1: Write the proportion equation
326,730,823.40 : 490,096,235.10 = 324,817,635.80 : x - Step 2: Convert to fraction form
326,730,823.40/490,096,235.10 = 324,817,635.80/x - Step 3: Cross multiply
326,730,823.40x = 490,096,235.10 × 324,817,635.80 - Step 4: Simplify right side
326,730,823.40x = 159,191,900,399,662,976 - Step 5: Solve for x
x = 159,191,900,399,662,976/326,730,823.40 - Step 6: Final answer
x = 487,226,453.70
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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.