Finding the Fourth Proportional to 203,472,207.60, 305,226,973.80 and 67,157,890.80
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Solution
The fourth proportional to 203,472,207.60, 305,226,973.80 and 67,157,890.80 is: 100,742,995.90
Step by Step Solution
- Step 1: Write the proportion equation
203,472,207.60 : 305,226,973.80 = 67,157,890.80 : x - Step 2: Convert to fraction form
203,472,207.60/305,226,973.80 = 67,157,890.80/x - Step 3: Cross multiply
203,472,207.60x = 305,226,973.80 × 67,157,890.80 - Step 4: Simplify right side
203,472,207.60x = 20,498,399,775,674,860 - Step 5: Solve for x
x = 20,498,399,775,674,860/203,472,207.60 - Step 6: Final answer
x = 100,742,995.90
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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.