Finding the Fourth Proportional to 262,441,603.80, 393,662,405.70 and 258,615,228.60
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Solution
The fourth proportional to 262,441,603.80, 393,662,405.70 and 258,615,228.60 is: 387,922,842.90
Step by Step Solution
- Step 1: Write the proportion equation
262,441,603.80 : 393,662,405.70 = 258,615,228.60 : x - Step 2: Convert to fraction form
262,441,603.80/393,662,405.70 = 258,615,228.60/x - Step 3: Cross multiply
262,441,603.80x = 393,662,405.70 × 258,615,228.60 - Step 4: Simplify right side
262,441,603.80x = 101,807,093,041,331,440 - Step 5: Solve for x
x = 101,807,093,041,331,440/262,441,603.80 - Step 6: Final answer
x = 387,922,842.90
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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.