Finding the Fourth Proportional to 245,621,577.60, 367,424,596.80 and 221,435,107.20
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Solution
The fourth proportional to 245,621,577.60, 367,424,596.80 and 221,435,107.20 is: 331,244,126.74
Step by Step Solution
- Step 1: Write the proportion equation
245,621,577.60 : 367,424,596.80 = 221,435,107.20 : x - Step 2: Convert to fraction form
245,621,577.60/367,424,596.80 = 221,435,107.20/x - Step 3: Cross multiply
245,621,577.60x = 367,424,596.80 × 221,435,107.20 - Step 4: Simplify right side
245,621,577.60x = 81,360,704,980,324,768 - Step 5: Solve for x
x = 81,360,704,980,324,768/245,621,577.60 - Step 6: Final answer
x = 331,244,126.74
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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.