Finding the Fourth Proportional to 4,609,989.60, 6,916,012.30 and 1,415,438.70
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Solution
The fourth proportional to 4,609,989.60, 6,916,012.30 and 1,415,438.70 is: 2,123,473.65
Step by Step Solution
- Step 1: Write the proportion equation
4,609,989.60 : 6,916,012.30 = 1,415,438.70 : x - Step 2: Convert to fraction form
4,609,989.60/6,916,012.30 = 1,415,438.70/x - Step 3: Cross multiply
4,609,989.60x = 6,916,012.30 × 1,415,438.70 - Step 4: Simplify right side
4,609,989.60x = 9,789,191,459,096.01 - Step 5: Solve for x
x = 9,789,191,459,096.01/4,609,989.60 - Step 6: Final answer
x = 2,123,473.65
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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.