Finding the Fourth Proportional to 247,239,409.80, 370,859,114.70 and 74,742,846.60
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Solution
The fourth proportional to 247,239,409.80, 370,859,114.70 and 74,742,846.60 is: 112,114,269.90
Step by Step Solution
- Step 1: Write the proportion equation
247,239,409.80 : 370,859,114.70 = 74,742,846.60 : x - Step 2: Convert to fraction form
247,239,409.80/370,859,114.70 = 74,742,846.60/x - Step 3: Cross multiply
247,239,409.80x = 370,859,114.70 × 74,742,846.60 - Step 4: Simplify right side
247,239,409.80x = 27,719,065,920,233,900 - Step 5: Solve for x
x = 27,719,065,920,233,900/247,239,409.80 - Step 6: Final answer
x = 112,114,269.90
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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.